Cambridge IGCSE™

PHYSICS 0625/13
Paper 1 Multiple Choice (Core) May/June 2020
45 minutes

You must answer on the multiple choice answer sheet.

*6608142237*

You will need: Multiple choice answer sheet

Soft clean eraser
Soft pencil (type B or HB is recommended)

INSTRUCTIONS
• There are forty questions on this paper. Answer all questions.
• For each question there are four possible answers A, B, C and D. Choose the one you consider correct
and record your choice in soft pencil on the multiple choice answer sheet.
• Follow the instructions on the multiple choice answer sheet.
• Write in soft pencil.
• Write your name, centre number and candidate number on the multiple choice answer sheet in the
spaces provided unless this has been done for you.
• Do not use correction fluid.
• Do not write on any bar codes.
• You may use a calculator.
• Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

INFORMATION
• The total mark for this paper is 40.
• Each correct answer will score one mark. A mark will not be deducted for a wrong answer.
• Any rough working should be done on this question paper.

This document has 20 pages. Blank pages are indicated.

IB20 06_0625_13/4RP
© UCLES 2020 [Turn over
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1 Diagram 1 shows a solid, rectangular-sided block.

top

front side

diagram 1

Diagram 2 shows the same block from the front and from the side.
7
6
5
4

front side
3
2
cm 1

cm 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

diagram 2

Metre rules have been shown close to the edges of the block.

What is the volume of the block?

A 120 cm3 B 168 cm3 C 264 cm3 D 1155 cm3

2 The speed–time graph shows the motion of an object.

5
speed
m/s

0
0 5 10 15 20 25
time / s

How far does the object travel at constant speed?

A 25 m B 50 m C 75 m D 125 m

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3 Which statement about acceleration is correct?

A It is related to the changing speed of an object.

B It is the distance an object travels in one second.
C It is the force acting on an object divided by the distance it travels in one second.
D It is the force acting on an object when it is near to the Earth.

4 Two metal blocks P and Q have identical dimensions. They hang on identical spring balances.

N N
0 0
1 1
2 2
3 3
4 4
5 5
6 6

P
Q

Which statement about P and Q is correct?

A They have different volumes and different weights.

B They have different volumes and equal weights.
C They have equal volumes and equal weights.
D They have equal volumes and different weights.

5 Which row gives the correct weight for the mass shown?

The value of g is 10 N / kg.

mass / kg weight / N

A 2 20
B 10 1
C 10 10
D 20 2

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6 A rectangular gymnasium is 50 m long, 25 m wide and 8.0 m high.

The density of air is 1.2 kg / m3.

What is the best estimate of the mass of air in the gymnasium?

A 0.00012 kg B 100 kg C 8300 kg D 12 000 kg

7 The diagram shows two of the three vertical forces acting on a hot-air balloon. The hot-air balloon
is moving upwards at constant speed.

upthrust = 2500 N

weight = 2200 N

What is the air resistance acting on the hot-air balloon?

A 300 N downwards
B 300 N upwards
C 4700 N downwards
D 4700 N upwards

8 Which statement about the moment of a force is not correct?

A If an object is balanced about a pivot the resultant moment on the object must be zero.
B The moment of a force is a measure of its turning effect.

C The moment of a force about a point is equal to: force × perpendicular distance from the
point.
D The moment of a force about a point increases when the perpendicular distance of the force
from the point decreases.

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9 A mass bounces up and down on a steel spring. The diagram shows the mass and the spring at
different points during the motion.

highest mass mass

point moving moving
down up

lowest
point

At which point does the mass have the least gravitational potential energy and at which point is
the most elastic energy stored in the spring?

least amount of
most elastic energy
gravitational
stored in spring
potential energy

A mass moving down mass moving up

B mass moving down lowest point
C lowest point mass moving up
D lowest point lowest point

10 Which energy resource stores kinetic energy?

A coal
B nuclear fission
C solar
D wind

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11 A man can either take an escalator or a lift to travel up between two floors in a hotel.

escalator lift

The escalator takes 20 seconds to carry the man between the two floors. The useful work done
against gravity is W. The useful power developed is P.

The lift takes 30 seconds to carry the same man between the same two floors.

How much useful work against gravity is done by the lift, and how much useful power is
developed by the lift?

useful work
useful power
done against
developed by lift
gravity by lift

A more than W less than P

B more than W P
C W less than P
D W P

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12 The diagram shows a solid block resting on a bench. The dimensions of the block are shown.

40 cm
20 cm
Q

R bench
80 cm P

On which labelled surface should the block rest to produce the smallest pressure on the bench?

A P
B Q
C R
D P, Q and R produce the same pressure

13 The diagram shows a U-shaped glass tube, closed at one end by a tap. The glass tube contains
a liquid as shown.

atmospheric
pressure

closed tap

trapped gas
X

liquid

Some of the trapped gas is removed.

What will happen to the levels X and Y?

level X level Y

A higher lower
B higher higher
C lower higher
D lower lower

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14 What is the correct particle diagram for a solid?

A B C D

15 A sealed box contains a fixed mass of gas.

Which action results in each molecule of the gas colliding with the walls of the container less
frequently and with a smaller force?

A Decrease the temperature of the gas.

B Decrease the volume of the container.
C Increase the temperature of the gas.
D Increase the volume of the container.

16 The diagram shows a liquid-in-glass thermometer.

X Y

Which row gives the correct labels for the thermometer?

X Y

A water narrow tube of uniform diameter

B alcohol narrow tube of uniform diameter
C water this end immersed in substance to be measured
D alcohol this end immersed in substance to be measured

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17 The diagrams show four blocks of steel. The blocks are all drawn to the same scale.

The same quantity of thermal energy is given to each block.

Which block shows the greatest rise in temperature?

A B C D

18 A gas is cooled so that its molecules move more slowly, come closer together and do not move
freely.

Which process is being described?

A boiling
B condensing
C freezing
D melting

19 The diagram shows a vacuum flask used to keep a liquid warm.

airtight lid

outer cover

vacuum

silvered walls

Which methods of heat loss are reduced by the vacuum between the silvered walls?

A conduction only
B conduction and convection only
C convection and radiation only
D conduction, convection and radiation

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20 Equal volumes of water at 100 °C are put in four containers. Two containers have matt black
sides and two containers have shiny white sides. One of each type of container has a lid.

The containers are left for two minutes.

Which container has the highest temperature?

A B C D

lid lid

matt black sides matt black sides shiny white sides shiny white sides

21 The diagram shows a wave.

8 cm

3 cm

6 cm

4 cm

What are the amplitude and the wavelength of this wave?

amplitude / cm wavelength / cm

A 3 4
B 3 8
C 6 4
D 6 8

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22 Waves travel more quickly on the surface of water when the water is deep.

A stone is dropped at point X into a pool of varying depth. The diagram shows the first three
wavefronts on the surface of the pool.

The region between X and which labelled point is likely to be the deepest?

B
wavefronts

A X
C

23 The diagram shows a ray of light incident on a plane mirror.

mirror

35°

The angle between the ray and the mirror is 35°.

The ray is reflected by the mirror.

What is the angle of reflection?

A 35° B 55° C 70° D 110°

24 A beam of white light is split into a spectrum of seven colours.

Which name is given to this process?

A diffraction
B dispersion
C reflection
D refraction

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25 An intruder alarm sensor detects that a person is warmer than his surroundings.

Which type of electromagnetic wave does the sensor detect?

A infrared
B radio
C ultraviolet
D visible light

26 A tuning fork produces a sound when it vibrates.

What is the effect on the sound produced when the tuning fork vibrates more times every second
and with a larger amplitude?

A higher pitch and less loud

B higher pitch and louder
C lower pitch and less loud
D lower pitch and louder

27 The diagram shows a magnet with some plotting compasses. The compasses show the direction
of the magnetic field of the magnet.

Which plotting compass has the needle pointing in the wrong direction?

D N S B

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28 Four nails A, B, C and D are tested to find which makes the strongest permanent magnet.

One of the nails is placed against a bar magnet and the number of paper clips which the nail can
support is recorded.

nail
N S
bar magnet

paper clips

The bar magnet is then removed and the number of paper clips remaining attached to the nail is
recorded. Each nail is tested individually.

Which nail becomes the strongest permanent magnet?

number of paper clips attached to the nail

bar magnet present bar magnet removed

A 2 0
B 2 1
C 4 3
D 5 2

29 The diagram shows a positively charged conducting sphere and a wire connected to earth.

positively charged sphere

+
+ +
wire + +
+

earth
insulating support

What happens when the wire is touched onto the sphere?

A Electrons flow from earth to the sphere.

B Electrons flow from the sphere to earth.
C Positive charges flow from earth to the sphere.
D Positive charges flow from the sphere to earth.

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30 Three electrical quantities are listed.

● potential difference
● electromotive force
● current

Which quantities are measured in volts?

A potential difference only

B potential difference and current only
C potential difference and electromotive force only
D potential difference, electromotive force and current

31 A student uses the circuit shown to determine the resistance of two identical resistors.

The voltmeter reading is 2.2 V and the ammeter reading is 0.25 A.

What is the resistance of each resistor?

A 0.275 Ω B 0.55 Ω C 4.4 Ω D 8.8 Ω

32 The diagram shows part of a circuit containing three identical lamps.

X
W
Z

At which two points do the currents have the same value?

A W and X B W and Z C X and Y D Y and Z

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33 Which circuit contains a thermistor and a heater?

A B

C D

34 A student constructs four circuits, each containing a fuse.

The fuse blows in one circuit and both lamps in the circuit go out.

In which circuit does the fuse blow and both lamps go out?

A B

C D

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35 The graphs show how the currents in three circuits vary with time.

circuit 1 circuit 2
1.5 1.5
current / A 1.0 current / A 1.0
0.5 0.5
0.0 0.0
–0.5 –0.5
–1.0 –1.0
–1.5 –1.5
time time

circuit 3
1.5
current / A 1.0
0.5
0.0
–0.5
–1.0
–1.5
time

In which circuits is there a direct current?

A 1 and 2 B 1 and 3 C 2 only D 3 only

36 The diagram represents the transmission of electricity from a power station to homes that are
many kilometres away. Two transformers are labelled X and Y.

transmission
pylon cables pylon

cables

large houses
power ground
station X distance Y

What type of transformers are X and Y?

X Y

A step-down transformer step-down transformer

B step-down transformer step-up transformer
C step-up transformer step-down transformer
D step-up transformer step-up transformer

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37 A nuclide of the element iron has the symbol shown.

56
26Fe

What does a neutral atom of this nuclide contain?

protons neutrons electrons

A 26 30 26
B 26 56 30
C 30 26 56
D 56 26 30

38 The diagram shows an early model of the structure of an atom.

ball of
negatively positive
charged charge
electron

This early model is different from the atomic model accepted today.

Which statement about the early model is not included in the model accepted today?

A The atom is mainly filled with a ball of positive charge.

B The electrons are negatively charged.
C There are positive and negative charges.
D There are small particles called electrons.

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39 A thin sheet of paper is placed between a radioactive source and a radiation detector. The count
rate falls to a very low reading.

paper

detector

counter
source

From this result, which type of radiation is the source emitting?

A α-particles

B β-particles

C γ-rays
D X-rays

40 Why should all radioactive materials be handled carefully?

A They all make anything they touch radioactive.

B They all catch fire very easily.
C They all emit ionising radiation.
D They all have long half-lives.

© UCLES 2020 0625/13/M/J/20

 Cambridge IGCSE™

PHYSICS 0625/12
Paper 1 Multiple Choice (Core) May/June 2020
45 minutes

You must answer on the multiple choice answer sheet.

*4118729190*

You will need: Multiple choice answer sheet

Soft clean eraser
Soft pencil (type B or HB is recommended)

INSTRUCTIONS
• There are forty questions on this paper. Answer all questions.
• For each question there are four possible answers A, B, C and D. Choose the one you consider correct
and record your choice in soft pencil on the multiple choice answer sheet.
• Follow the instructions on the multiple choice answer sheet.
• Write in soft pencil.
• Write your name, centre number and candidate number on the multiple choice answer sheet in the
spaces provided unless this has been done for you.
• Do not use correction fluid.
• Do not write on any bar codes.
• You may use a calculator.
• Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

INFORMATION
• The total mark for this paper is 40.
• Each correct answer will score one mark. A mark will not be deducted for a wrong answer.
• Any rough working should be done on this question paper.

This document has 20 pages. Blank pages are indicated.

IB20 06_0625_12/4RP
© UCLES 2020 [Turn over
 2

1 Five athletes P, Q, R, S and T compete in a race. The table shows the finishing times for the
athletes.

athlete P Q R S T
finishing time / s 22.50 24.40 25.20 26.50 23.20

Which statement is correct?

A Athlete P won the race and was 0.70 s ahead of the athlete in second place.
B Athlete P won the race and was 1.90 s ahead of the athlete in second place.
C Athlete S won the race and was 1.30 s ahead of the athlete in second place.
D Athlete S won the race and was 2.10 s ahead of the athlete in second place.

2 The graph shows how the speed of an object varies with time.

At which labelled time is the acceleration greatest?

speed

0
0 A B C D time

3 Which statement about acceleration is correct?

A It is related to the changing speed of an object.

B It is the distance an object travels in one second.
C It is the force acting on an object divided by the distance it travels in one second.
D It is the force acting on an object when it is near to the Earth.

© UCLES 2020 0625/12/M/J/20

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6 Water has a density of 1000 kg / m3.

A rectangular swimming pool has an average depth of 1.6 m.

The length of the pool is 25 m.

The width of the pool is 10 m.

What is the mass of the water in the swimming pool?

A 2.5 kg B 400 kg C 400 000 kg D 800 000 kg

7 The diagram shows an extension–load graph for a spring.

10.0
extension / cm
9.0

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

0
0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0

load / N

An empty can of weight 3.0 N is suspended from the spring.

Liquid is poured into the can until the extension is 8.0 cm.

What is the weight of the liquid?

A 4.0 N B 10.0 N C 13.0 N D 16.0 N

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8 What is meant by the moment of a force on an object?

A the magnitude of the force on the object

B the direction of the force on the object
C the time for which the force acts on the object
D the turning effect of the force on the object

9 Which energy resource is not renewable?

A geothermal
B nuclear fission
C solar
D wind

10 Two motors X and Y lift loads of the same weight through the same vertical distance.

Motor X is more efficient than motor Y.

Which statement about the motors is correct?

A The useful energy output of motor X is larger than that of motor Y.

B The useful energy output of motor X is smaller than that of motor Y.
C The energy input of motor X is larger than that of motor Y.
D The energy input of motor X is smaller than that of motor Y.

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25 An intruder alarm sensor detects that a person is warmer than his surroundings.

Which type of electromagnetic wave does the sensor detect?

A infrared
B radio
C ultraviolet
D visible light

26 A dolphin sends out a sound wave. An echo returns 0.010 s later from a fish which is 7.5 m from
the dolphin.

What is the speed of the sound wave in water?

A 0.075 m / s B 0.15 m / s C 750 m / s D 1500 m / s

27 The diagrams show two bar magnets which are attracting each other.

Which diagram shows the magnetic field pattern between the poles?

A B

S N S N S N S N

C D

S N S N S N S N

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23 The diagram shows a ray of light incident on the surface of a glass block.

1
2
3
glass block
4

The ray of light is partially reflected back into the air and partially refracted into the glass block.

Which row correctly identifies the angle of reflection and the angle of refraction?

angle of angle of
reflection refraction

A 1 3
B 1 4
C 2 3
D 2 4

24 A beam of light consists of yellow and blue light.

The beam of light is incident on a glass prism.

Which diagram is correct?

A B
yellow blue
blue yellow
glass prism glass prism

C D

glass prism glass prism

blue yellow

yellow blue

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34 A student constructs four circuits, each containing a fuse.

The fuse blows in one circuit and both lamps in the circuit go out.

In which circuit does the fuse blow and both lamps go out?

A B

C D

35 The diagrams P, Q and R show three voltage–time graphs.

diagram P diagram Q
+ +
voltage voltage
0 0
0 time 0 time
– –

diagram R
+
voltage
0
0 time
–

Which graphs show an alternating voltage?

A P and Q only B P and R only C Q and R only D P, Q and R

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BLANK PAGE

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39 A thin sheet of paper is placed between a radioactive source and a radiation detector. The count
rate falls to a very low reading.

paper

detector

counter
source

From this result, which type of radiation is the source emitting?

A α-particles

B β-particles

C γ-rays
D X-rays

40 A radioactive isotope has a half-life of 120 minutes.

It emits radiation at a rate of 100 particles per second.

How long does it take for the rate of emission to fall to 25 particles per second?

A 30 minutes B 45 minutes C 90 minutes D 240 minutes

© UCLES 2020 0625/12/M/J/20

 Cambridge IGCSE™

PHYSICS 0625/12
Paper 1 Multiple Choice (Core) February/March 2020
45 minutes

You must answer on the multiple choice answer sheet.

*6993319596*

You will need: Multiple choice answer sheet

Soft clean eraser
Soft pencil (type B or HB is recommended)

INSTRUCTIONS
• There are forty questions on this paper. Answer all questions.
• For each question there are four possible answers A, B, C and D. Choose the one you consider correct
and record your choice in soft pencil on the multiple choice answer sheet.
• Follow the instructions on the multiple choice answer sheet.
• Write in soft pencil.
• Write your name, centre number and candidate number on the multiple choice answer sheet in the
spaces provided unless this has been done for you.
• Do not use correction fluid.
• Do not write on any bar codes.
• You may use a calculator.
• Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

INFORMATION
• The total mark for this paper is 40.
• Each correct answer will score one mark. A mark will not be deducted for a wrong answer.
• Any rough working should be done on this question paper.

This document has 20 pages. Blank pages are indicated.

IB20 03_0625_12/5RP
© UCLES 2020 [Turn over
 13

24 The diagram shows an image being formed by a converging lens.

object

2F F F 2F

image

Which description of the image formed is correct?

A enlarged and inverted

B enlarged and upright
C diminished and inverted
D diminished and upright

25 The horn on a ship makes a sound. The captain on the ship hears an echo from a cliff 4.0 s later.

The speed of sound is 340 m / s.

How far away is the cliff from the ship?

A 170 m B 340 m C 680 m D 1360 m

26 Bats produce ultrasound waves to navigate.

What is a possible frequency range for these waves?

A 0–20 Hz
B 20 Hz–2000 Hz
C 2 kHz–20 kHz
D 20 kHz–120 kHz

27 The table shows the forces that exist between magnetic poles.

Which row is correct?

N pole and N pole N pole and S pole

A attraction attraction
B attraction repulsion
C repulsion attraction
D repulsion repulsion

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23 Which diagram shows how the light from a candle is reflected by a mirror, and shows the position
of the image formed?

A B

image of image of
candle candle
candle candle

eye

eye
mirror mirror

C D

candle candle

image of
candle eye

image of eye
candle
mirror mirror

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22 Waves on the surface of water travel from deep to shallow water.

Which diagram shows the correct path of the waves in the shallow water?

A B

deep shallow deep shallow

water water water water

C D

shallow shallow
deep water deep water
water water

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28 The diagrams show three different metal rods P, Q and R, inside coils of wire.

Small iron nails are placed on a wooden bench under the rods.

Diagram 1 shows the situation when there are electric currents in the wires.

Diagram 2 shows the situation when the currents are switched off.

diagram 1
P Q R

current
in coils

wooden
bench

diagram 2
P Q R

no
current
in coils
wooden
bench

Which row correctly identifies the metal rods?

P Q R

A copper soft iron steel

B soft iron copper steel
C steel soft iron copper
D copper steel soft iron

29 A polythene rod becomes negatively charged when it is rubbed with a cloth.

Which statement explains this?

A The rod gains electrons.

B The rod loses electrons.
C The rod gains protons.
D The rod loses protons.

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30 The diagram shows a reading on an ammeter.

4 6
2 8

10
0
A

What is the reading?

A 0.45 A B 0.50 A C 4.5 A D 5.0 A

31 A student is to determine the resistance of resistor R. She uses a circuit including a voltmeter and
an ammeter.

Which circuit should be used?

A B C D

V A V V A
R R R R

A A V

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40 The graph shows the count rate from a radioactive source over a period of time.

2000
count rate
counts / s

1500

1000

500

0
0 1 2 3
time / hours

What is the half-life of the source?

A 0.5 hour B 1.0 hour C 1.5 hours D 3.0 hours

Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every
reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the
publisher will be pleased to make amends at the earliest possible opportunity.

To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge
Assessment International Education Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download
at www.cambridgeinternational.org after the live examination series.

Cambridge Assessment International Education is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of the University of
Cambridge Local Examinations Syndicate (UCLES), which itself is a department of the University of Cambridge.

© UCLES 2020 0625/12/F/M/20

 18

37 A current-carrying conductor is placed between two magnetic poles. The current causes a force
to act on the wire.

force wire

N S

current
direction

Three other arrangements P, Q and R, of the wire and magnetic poles are set up as shown.

P Q R

N S S N S N

current reversed magnetic poles current reversed and

switched around magnetic poles
switched around

Which arrangements will cause a force in the opposite direction to that shown in the top diagram?

A P, Q and R B P and Q only C P only D R only

14
38 The symbol for a radioactive nuclide of carbon is 6 C.
How many neutrons are in its nucleus?

A 6 B 8 C 14 D 20

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 16

32 The diagram shows a battery connected to two resistors. Three ammeters M1, M2 and M3 are
connected in the circuit.

M1 A A M3

A
M2

Ammeter M1 reads 1.0 A.

What are the readings on M2 and on M3?

reading on reading on
M2 / A M3 / A
A 0.0 0.0
B 0.5 0.5
C 0.5 1.0
D 1.0 1.0

33 Lamps in a circuit are connected in parallel.

What is the advantage of this?

A If one lamp breaks, the others remain lit.

B Less current is taken from the power supply.
C The lamps use less power than if they were connected in series.
D The potential difference across each lamp is less than that of the power supply.

© UCLES 2020 0625/12/F/M/20

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13 A skier is standing still on a flat area of snow.

skis

The weight of the skier is 550 N. The total area of his skis in contact with the ground is 0.015 m2.

What is the pressure exerted on the ground by the skier?

A 0.83 N / m2 B 8.3 N / m2 C 3700 N / m2 D 37 000 N / m2

14 The molecules of a substance in a particular state of matter move freely with random motion. The
average speed of the molecules is increasing.

What is being described?

A a gas being heated

B a liquid evaporating
C a solid being heated
D a solid melting

15 A student measures the mass of warm water in an open container over two minutes. The
container is kept at a constant temperature. The results are in the table.

time / minutes mass / g

0.0 33.9
0.5 30.6
1.0 27.6
1.5 24.9
2.0 22.5

Why does the mass of the water change?

A The water evaporates.

B The water freezes.
C The water condenses.
D The water boils.

© UCLES 2020 0625/12/F/M/20 [Turn over

 3

3 A steel ball is dropped from the top floor of a building. Air resistance can be ignored.

Which statement describes the motion of the ball?

A The ball falls with constant acceleration.

B The ball falls with constant speed.
C The ball falls with decreasing speed.
D The ball falls with increasing acceleration.

4 Diagram 1 shows a piece of flexible material that contains many pockets of air. Diagram 2 shows
the same piece of flexible material after it has been compressed so that its volume decreases.

diagram 1 diagram 2
(before compression) (after compression)

What happens to the mass and to the weight of the flexible material when it is compressed?

mass weight

A increases increases
B increases no change
C no change increases
D no change no change

5 On the Moon, the gravitational field strength g is 1.6 N / kg.

An object has a mass of 2.0 kg.

What is the weight of the object on the Moon?

A 0N B 1.3 N C 3.2 N D 20.0 N

6 A measuring cylinder contains 40 cm3 of water.

A solid metal ball is dropped into the water and the water level rises to 56 cm3.

The mass of the ball is 80 g.

What is the density of the metal from which the ball is made?

A 0.20 g / cm3 B 1.4 g / cm3 C 2.0 g / cm3 D 5.0 g / cm3

© UCLES 2020 0625/12/F/M/20 [Turn over

 4

7 A car travels along a horizontal road at constant speed. Three horizontal forces act on the car.
The diagram shows two of these forces.

direction of
motion forwards

air resistance force from engine

300 N 1500 N

What is the size and the direction of the third horizontal force acting on the car?

A 1200 N backwards
B 1200 N forwards
C 1800 N backwards
D 1800 N forwards

8 A force F is applied to a spanner, as shown.

spanner
nut

Which action increases the moment of F about the centre of the nut?

A apply the force F to the end of the spanner handle

B apply the force F parallel to the spanner handle
C spray oil on the nut
D use a shorter spanner

9 A ball is released from rest and rolls down a track from the position shown.

What is the furthest position that it is possible for the ball to reach?

ball C
starts
B
here

© UCLES 2020 0625/12/F/M/20

 5

10 Which row describes an advantage and a disadvantage of wind turbines?

advantage disadvantage

A no fuel needed harmful gases released

B variable supply fuel needed
C no harmful gases released variable supply
D constant supply noisy

11 A box of mass m and weight W is carried up some stairs of total height x and total width y.

x
box

On which quantities does the work done against gravity on the box depend?

A m and y B W and x C W and y D x and y

© UCLES 2020 0625/12/F/M/20 [Turn over

 10

21 The diagrams show examples of wave motion.

1 2
ripple tank

drum

waves on water waves in air

3 4

waves on a rope waves in a spring

Which waves are longitudinal?

A 1 only B 2 and 3 only C 2, 3 and 4 D 2 and 4 only

© UCLES 2020 0625/12/F/M/20

 9

19 Rods of the same shape and size are inserted through corks into a tank of hot water. Each rod is
covered with a layer of solid wax that has a low melting point. After a period of time, some wax
melts.

hot water tank

good thermal
conductor

cork
bad thermal
moderate thermal conductor
conductor

On which rod will the wax melt first?

A all at the same time

B good thermal conductor
C bad thermal conductor
D moderate thermal conductor

20 A boy jumps into an indoor swimming pool. He notices that the water appears to get colder as he
goes deeper underwater. This is due to convection.

Which statement is correct?

A Cold water is more dense than warm water so it sinks to the bottom of the pool.
B Warm water is more dense than cold water so it rises to the surface of the pool.
C The molecules in cold water have more kinetic energy than the molecules in warm water so
they move to the bottom of the pool faster.
D The molecules in warm water are closer together than the molecules in cold water so they
rise to the surface of the pool.

© UCLES 2020 0625/12/F/M/20 [Turn over

 Cambridge Assessment International Education
Cambridge International General Certificate of Secondary Education

PHYSICS 0625/13
Paper 1 Multiple Choice (Core) October/November 2019
45 minutes
Additional Materials: Multiple Choice Answer Sheet
Soft clean eraser
*8984949399*

Soft pencil (type B or HB recommended)

READ THESE INSTRUCTIONS FIRST

Write in soft pencil.

Do not use staples, paper clips, glue or correction fluid.
Write your name, centre number and candidate number on the Answer Sheet in the spaces provided
unless this has been done for you.
DO NOT WRITE IN ANY BARCODES.

There are forty questions on this paper. Answer all questions. For each question there are four possible
answers A, B, C and D.
Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet.

Read the instructions on the Answer Sheet very carefully.

Each correct answer will score one mark. A mark will not be deducted for a wrong answer.
Any rough working should be done in this booklet.
Electronic calculators may be used.
Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

This syllabus is regulated for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate.

This document consists of 15 printed pages and 1 blank page.

IB19 11_0625_13/4RP
© UCLES 2019 [Turn over
 2

1 A student uses a ruler to find the volume of water in a tank.

She measures the lengths EF and FG.

H
J
K
water G

E F

What other length does she need to measure?

A FJ B FK C HI D IJ

2 An object begins to fall close to the Earth’s surface. Air resistance can be ignored.

Which statement about the object’s acceleration is correct?

A The acceleration is constant.

B The acceleration decreases as the body falls.
C The acceleration increases as the body falls.
D The acceleration is zero.

3 A car travels at an average speed of 60 km / h for 15 minutes.

How far does the car travel in 15 minutes?

A 4.0 km B 15 km C 240 km D 900 km

4 Which equation shows the relationship between the weight W and the mass m of an object?

m
A W=
g

B W = mg
C W=m+g

g
D W=
m

© UCLES 2019 0625/13/O/N/19

 3

5 Four hollow glass spheres P, Q, R and S each have a mass of 72 g.

Their volumes are given in the table.

volume / cm3

P 55
Q 65
R 75
S 85

Which spheres sink in a liquid of density 0.9 g / cm3?

A P, Q and R B Q, R and S C R and S only D S only

6 A student measures the length of a spring. She then attaches different weights to the spring. She
measures the length of the spring for each weight.

The table shows her results.

weight / N length / mm

0 520
1.0 524
2.0 528
3.0 533
4.0 537
5.0 540

What is the extension of the spring with a weight of 3.0 N attached to it?

A 4 mm B 5 mm C 12 mm D 13 mm

7 The diagram shows a uniform metre rule. The rule is pivoted at its mid-point. A downward force of
4.0 N acts on the rule at the 5 cm mark. The rule is held by a string at the 30 cm mark. The rule is
in equilibrium.

string metre rule

0 cm mark 100 cm mark
5 50

30
pivot

4.0 N

What is the upward force that the string exerts on the rule?

A 0.67 N B 4.0 N C 6.0 N D 9.0 N

© UCLES 2019 0625/13/O/N/19 [Turn over

 4

8 The diagrams represent the only two forces acting on an object.

Which object could be moving to the right at constant speed?

A B

1.0 N 1.0 N 1.0 N 1.0 N

C D

1.0 N 2.0 N 2.0 N 1.0 N

9 Brakes are used to slow down a moving car.

Into which form of energy is most of the kinetic energy converted as the car slows down?

A chemical
B elastic
C thermal
D sound

10 Three situations are listed.

1 someone blowing air into a party balloon

2 a crane lifting a block of concrete
3 a pile of books at rest on a shelf

In which situations is work being done?

A 1 only B 1 and 2 only C 2 and 3 only D 1, 2 and 3

© UCLES 2019 0625/13/O/N/19

 5

11 A boy lifts a brick from the ground and places it at rest on a higher shelf. He does 30 J of work
against gravity.

Which row correctly describes the final energies of the brick?

gravitational potential kinetic energy gained

energy gained by the brick by the brick
/J /J

A 0 30
B 15 15
C 30 0
D 27 3

12 A drawing pin (thumb tack) has a sharp point at one end and a flat surface at the other end.

sharp point flat surface

The pin is pushed into a wooden board.

How do the pressure and the force at the sharp point compare with the pressure and the force on
the flat surface?

force at the sharp point pressure at the sharp point

A greater than on the flat surface greater than on the flat surface
B greater than on the flat surface less than on the flat surface
C the same as on the flat surface greater than on the flat surface
D the same as on the flat surface less than on the flat surface

13 Pressure is related to force and area.

Which situation cannot be explained using this relationship?

A Using a longer spanner than normal to undo a tight nut.

B Hammering a nail into a piece of wood.
C Tractors using wide tyres in a muddy field.
D A sharp kitchen knife cutting vegetables more easily than a blunt one.

© UCLES 2019 0625/13/O/N/19 [Turn over

 9

23 A person stands 1.0 m in front of a plane mirror. The mirror is moved away from the person at a
speed of 1.0 m / s.

Which statement is correct?

A The image moves away from the person at a speed of 1.0 m / s.

B The image moves away from the person at a speed of 2.0 m / s.
C The image moves towards the person at a speed of 1.0 m / s.
D The image moves towards the person at a speed of 2.0 m / s.

24 Which diagram shows total internal reflection of light by a glass prism?

A B C D

25 The diagram shows the electromagnetic spectrum.

radio
γ-rays X-rays ultraviolet visible light infrared microwaves
waves

increasing ......................

A word is missing from the label below the spectrum.

Which word is missing?

A amplitude
B frequency
C speed
D wavelength

26 A man hears a starting pistol fire 1.5 seconds after he sees a puff of smoke from the pistol. The
sound and the smoke are made at the same time. The starting pistol is 450 metres away from the
man.

What is the speed of sound calculated from this observation?

A 150 m / s B 300 m / s C 330 m / s D 625 m / s

© UCLES 2019 0625/13/O/N/19 [Turn over

 10

27 The diagram represents a magnetic field. The field increases in strength from left to right.

A small compass is placed at P.

Which way will the compass needle point?

A B C D
N

N N

28 Two soft-iron rods are placed end-to-end inside a coil. The coil is connected to a battery.

coil

soft-iron rod soft-iron rod

The connections from the battery to the coil are now reversed.

What happens to the soft-iron rods in each case?

battery connections battery connections

as shown reversed

A rods attract rods attract

B rods attract rods repel
C rods repel rods attract
D rods repel rods repel

© UCLES 2019 0625/13/O/N/19

 8

20 Why are the outside walls of houses often painted white in very hot countries?

A White surfaces are good absorbers of infrared radiation.

B White surfaces are good emitters of infrared radiation.
C White surfaces are poor absorbers of infrared radiation.
D White surfaces are poor reflectors of infrared radiation.

21 Which type of wave is not an example of a transverse wave?

A sound wave
B microwave
C infrared wave
D radio wave

22 Plane water waves approach a narrow gap in a barrier.

Which diagram shows the diffraction pattern that would occur?

A B

C D

© UCLES 2019 0625/13/O/N/19

 7

17 A liquid-in-glass thermometer has a range from –10 °C to 110 °C.

What are the fixed point temperatures used when calibrating this thermometer in °C?

A –10 °C and 0 °C

B –10 °C and 110 °C

C 0 °C and 100 °C

D 0 °C and 110 °C

18 The diagram shows four labelled changes of state between solid, liquid and gas.

P Q

solid liquid gas

S R

Which changes need an energy input?

A P and Q B Q and R C R and S D S and P

19 A beaker contains some cold water. A purple crystal is placed on the bottom of the beaker. The
beaker is gently heated beneath the crystal. The crystal dissolves in the water. The colour
spreads, as shown in the diagram.

gentle heat

Three students each make a statement about the experiment.

Student 1 says the purple water is less dense than the rest of the water.

Student 2 says the purple water is warmer than the rest of the water.

Student 3 says all of the water will eventually get heated, even though water is a poor conductor
of thermal energy.

Which students are correct?

A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3

© UCLES 2019 0625/13/O/N/19 [Turn over

 11

29 A plastic rod is rubbed with a dry cloth. The rod becomes positively charged.

Why has the rod become positively charged?

A It has gained electrons.

B It has gained neutrons.
C It has lost electrons.
D It has lost neutrons.

30 A resistor is connected to a battery. There is a current in the resistor.

What is the main energy change?

A Chemical energy is converted into thermal energy.

B Chemical energy is converted into gravitational potential energy.
C Nuclear energy is converted into thermal energy.
D Nuclear energy is converted into gravitational potential energy.

31 Lamps X and Y are designed to operate at normal brightness when each are connected to a 3.0 V
supply.

Lamp Z is designed to operate at normal brightness when connected to a 6.0 V supply.

In which circuit do all three lamps operate at normal brightness?

A B C D

6V 6V 3V 6V

X Y X X

X Y Z
Z Y Y

Z Z

© UCLES 2019 0625/13/O/N/19 [Turn over

 12

32 Identical resistors are connected together to form arrangements X, Y and Z.

X Y Z

What is the correct order of the resistances of the arrangements from the largest to the smallest?

A X→Y→Z

B Y→X→Z

C Z→X→Y

D Z→Y→X

33 Which circuit shows a variable resistor used to control the brightness of a lamp?

A B C D

34 Where must a fuse be connected in a mains electric circuit?

A the earth wire only

B the live wire only
C the neutral wire only
D the live wire and the earth wire

35 A step-up transformer produces a 60 V a.c. output from a 12 V a.c. input.

There are 50 turns on the secondary coil.

How many turns are there on the primary coil?

A 5 B 10 C 50 D 250

© UCLES 2019 0625/13/O/N/19

 13

36 A student uses a balance, a magnet and a power supply to determine the force on a wire in a
magnetic field.

The wire is held between the poles of the magnet.

The student switches on the power supply.

The diagrams show the readings with and without a current in the wire.

power supply power supply

off on
wire wire

N N
S magnet S

108 g 107 g
balance

no current in wire current in wire

The student reverses the current in the wire. The magnitude of the current does not change.

What is the new reading on the balance?

A 106 g B 107 g C 108 g D 109 g

© UCLES 2019 0625/13/O/N/19 [Turn over

 14

37 The diagram represents a neutral atom.

nucleus

Which row identifies each type of particle in the diagram?

A electron neutron proton

B electron proton neutron
C neutron electron proton
D proton electron neutron

38 An iron nuclide is represented by the symbol shown.

56
26Fe

Which statements about a nucleus of this iron nuclide are correct?

1 The nucleus contains 56 neutrons.

2 The nucleon number is 30.
3 The proton number is 26.

A 1 and 2 only B 1 and 3 only C 2 and 3 only D 3 only

© UCLES 2019 0625/13/O/N/19

 15

39 Three types of radiation that can cause ionisation are α-, β- and γ-radiation.

Which row identifies the least and the most ionising of these radiations?

least most
ionising ionising

A α β
B α γ
C γ β
D γ α

40 Why are some radioactive sources stored in boxes made from lead?

A Lead absorbs emissions from the radioactive sources.

B Lead decreases the half-life of radioactive sources.
C Lead increases the half-life of radioactive sources.
D Lead repels emissions from the radioactive sources.

© UCLES 2019 0625/13/O/N/19

 Cambridge Assessment International Education
Cambridge International General Certificate of Secondary Education

PHYSICS 0625/12
Paper 1 Multiple Choice (Core) October/November 2019
45 minutes
Additional Materials: Multiple Choice Answer Sheet
Soft clean eraser
*5658967703*

Soft pencil (type B or HB recommended)

READ THESE INSTRUCTIONS FIRST

Write in soft pencil.

Do not use staples, paper clips, glue or correction fluid.
Write your name, centre number and candidate number on the Answer Sheet in the spaces provided
unless this has been done for you.
DO NOT WRITE IN ANY BARCODES.

There are forty questions on this paper. Answer all questions. For each question there are four possible
answers A, B, C and D.
Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet.

Read the instructions on the Answer Sheet very carefully.

Each correct answer will score one mark. A mark will not be deducted for a wrong answer.
Any rough working should be done in this booklet.
Electronic calculators may be used.
Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

This syllabus is regulated for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate.

This document consists of 15 printed pages and 1 blank page.

IB19 11_0625_12/4RP
© UCLES 2019 [Turn over
 14

36 The diagram shows a conductor carrying current in a direction out of the plane of the page.

Which set of arrows represents the direction of the magnetic field due to this current?

A B

key
wire carrying a current
out of the paper
C D

37 The diagrams show the simple atomic structure for two neutral atoms X and Y of different
elements.

X Y

Which row is correct?

atom with atom with a more

more electrons positively charged nucleus

A X X
B X Y
C Y X
D Y Y

© UCLES 2019 0625/12/O/N/19

 7

18 The diagram shows four labelled changes of state between solid, liquid and gas.

P Q

solid liquid gas

S R

Which changes need an energy input?

A P and Q B Q and R C R and S D S and P

19 Which method of thermal transfer occurs when the density of some of a liquid decreases and the
liquid moves upwards?

A conduction
B convection
C evaporation
D radiation

20 The diagram shows a tent made from a new material.

new material

What type of material should the tent be made of to reflect the radiant energy from the Sun?

material material
texture surface colour

A dull black
B dull white
C shiny black
D shiny white

© UCLES 2019 0625/12/O/N/19 [Turn over

 9

23 A ray of light is incident on a plane mirror. A student measures the angle of incidence i and the
angle of reflection r.

incident i r reflected
ray ray

The student varies the angle of incidence and then plots a graph of r against i.

What does the graph look like?

A B C D

r r r r

0 0 0 0
0 i 0 i 0 i 0 i

24 The diagram shows the path of a ray of green light through a glass prism.

The angle of deviation is the angle between the incident ray and the ray leaving the prism.

prism
angle of
incident ray deviation
of green light

When a ray of white light is incident on the prism, it separates into the colours of the visible
spectrum.

What is the name of this effect and which colour of light has the smallest angle of deviation?

colour with smallest

name of effect
angle of deviation

A diffraction red

B diffraction violet

C dispersion red

D dispersion violet

© UCLES 2019 0625/12/O/N/19 [Turn over

 10

25 The diagram shows the electromagnetic spectrum.

radio
γ-rays X-rays ultraviolet visible light infrared microwaves
waves

increasing ......................

A word is missing from the label below the spectrum.

Which word is missing?

A amplitude
B frequency
C speed
D wavelength

26 A man hears a starting pistol fire 1.5 seconds after he sees a puff of smoke from the pistol. The
sound and the smoke are made at the same time. The starting pistol is 450 metres away from the
man.

What is the speed of sound calculated from this observation?

A 150 m / s B 300 m / s C 330 m / s D 625 m / s

27 A bar magnet is slowly moved towards an unmagnetised metal object X.

bar magnet
S N X

When it is a few centimetres away, the object begins to slide towards the magnet.

Why does this happen?

A X is a non-magnetic material and magnetism is induced in it.

B X is a non-magnetic material and magnetism is not induced in it.
C X is a magnetic material and magnetism is induced in it.
D X is a magnetic material and magnetism is not induced in it.

© UCLES 2019 0625/12/O/N/19

 15

38 A nuclide of chlorine has the symbol shown.

35
17Cl

What is the nucleon number of this nuclide of chlorine?

A 17 B 18 C 35 D 52

39 Which type of radiation can be stopped by a sheet of paper?

A α-particles

B β-particles

C γ-rays
D Χ-rays

40 Why are some radioactive sources stored in boxes made from lead?

A Lead absorbs emissions from the radioactive sources.

B Lead decreases the half-life of radioactive sources.
C Lead increases the half-life of radioactive sources.
D Lead repels emissions from the radioactive sources.

© UCLES 2019 0625/12/O/N/19

 13

33 The circuit shows a wire WX connected to a cell.

100 cm
W X

The potential difference (p.d.) between W and X is 1.5 V.

What is the reading on the voltmeter?

A 0.4 V B 0.6 V C 0.9 V D 4.0 V

34 Where must a fuse be connected in a mains electric circuit?

A the earth wire only

B the live wire only
C the neutral wire only
D the live wire and the earth wire

35 The N-pole of a magnet is moved into a coil of wire connected to a galvanometer.

coil

S N

The needle of the galvanometer moves.

Which situation must give a smaller galvanometer reading?

A Use a coil with fewer turns and a stronger magnet.

B Use a coil with fewer turns and a weaker magnet.
C Use a coil with more turns and a stronger magnet.
D Use a coil with more turns and a weaker magnet.

© UCLES 2019 0625/12/O/N/19 [Turn over

 12

31 A student determines the resistance of an electric lamp.

He measures the current in the lamp and the potential difference (p.d.) across it.

Which circuit did he use?

A B

A V V

C D

V V

A A

32 Identical resistors are connected together to form arrangements X, Y and Z.

X Y Z

What is the correct order of the resistances of the arrangements from the largest to the smallest?

A X→Y→Z

B Y→X→Z

C Z→X→Y

D Z→Y→X

© UCLES 2019 0625/12/O/N/19

 11

28 Two soft-iron rods are placed end-to-end inside a coil. The coil is connected to a battery.

coil

soft-iron rod soft-iron rod

The connections from the battery to the coil are now reversed.

What happens to the soft-iron rods in each case?

battery connections battery connections

as shown reversed

A rods attract rods attract

B rods attract rods repel
C rods repel rods attract
D rods repel rods repel

29 A plastic rod is rubbed with a dry cloth. The rod becomes positively charged.

Why has the rod become positively charged?

A It has gained electrons.

B It has gained neutrons.
C It has lost electrons.
D It has lost neutrons.

30 Which quantity has the same unit as potential difference (p.d.)?

A current
B electromotive force (e.m.f.)
C resistance
D moment of a force

© UCLES 2019 0625/12/O/N/19 [Turn over

 4

7 What is the unit of the moment of a force?

A N B N / kg C N/m D Nm

8 The diagrams show a block of wood on a frictionless surface. In each diagram, the block has two
forces acting on its sides.

E F G H
2N
2N 2N 2N 2N 2N 2N
2N

Which diagrams show the block in equilibrium?

A E, G and H only
B E and F only
C G and H only
D E, F, G and H

9 Brakes are used to slow down a moving car.

Into which form of energy is most of the kinetic energy converted as the car slows down?

A chemical
B elastic
C thermal
D sound

10 What is the unit of thermal energy?

A °C B N C J D W

11 Which source of energy is non-renewable?

A oil
B solar
C tidal
D wind

© UCLES 2019 0625/12/O/N/19

 3

4 A box is placed on the ground. An upward force of 15 N is needed to lift the box at constant
speed.

Which row correctly describes the box?

mass of the box weight of the box

A 1.5 kg 15 N
B 15 N 1.5 kg
C 15 N 150 kg
D 150 kg 15 N

5 The table gives the mass and the volume of three objects P, Q and R.

object mass / g volume / cm3

P 23 36
Q 170 720
R 240 340

Which objects can float in a liquid of density 0.85 g / cm3?

A P and Q only
B P and R only
C Q and R only
D P, Q and R

6 A student measures the length of a spring. She then attaches different weights to the spring. She
measures the length of the spring for each weight.

The table shows her results.

weight / N length / mm

0 520
1.0 524
2.0 528
3.0 533
4.0 537
5.0 540

What is the extension of the spring with a weight of 3.0 N attached to it?

A 4 mm B 5 mm C 12 mm D 13 mm

© UCLES 2019 0625/12/O/N/19 [Turn over

 2

1 A measuring cylinder contains 10 cm3 of water.

A piece of steel is lowered into the measuring cylinder until it is fully submerged. The volume
reading increases to 12 cm3.

A second piece of steel is lowered into the measuring cylinder so that it is also fully submerged.
The volume reading increases to 15 cm3.

Which row shows the volumes of the two pieces of steel?

volume of first volume of second

piece of steel / cm3 piece of steel / cm3

A 2 3
B 2 5
C 12 3
D 12 15

2 The graph shows the motion of a car for a five-second period.

speed

0
0 3 5
time / s

Which row is correct?

the car is moving at

the car is at rest at
a constant speed at

A 0.0 s 2.0 s
B 0.0 s 4.0 s
C 4.0 s 0.0 s
D 4.0 s 2.0 s

3 A car travels at an average speed of 60 km / h for 15 minutes.

How far does the car travel in 15 minutes?

A 4.0 km B 15 km C 240 km D 900 km

© UCLES 2019 0625/12/O/N/19

 Cambridge International Examinations
Cambridge International General Certificate of Secondary Education

PHYSICS 0625/12
Paper 1 Multiple Choice (Core) May/June 2018
45 minutes
Additional Materials: Multiple Choice Answer Sheet
Soft clean eraser
*0690604720*

Soft pencil (type B or HB recommended)

READ THESE INSTRUCTIONS FIRST

Write in soft pencil.

Do not use staples, paper clips, glue or correction fluid.
Write your name, Centre number and candidate number on the Answer Sheet in the spaces provided
unless this has been done for you.
DO NOT WRITE IN ANY BARCODES.

There are forty questions on this paper. Answer all questions. For each question there are four possible
answers A, B, C and D.
Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet.

Read the instructions on the Answer Sheet very carefully.

Each correct answer will score one mark. A mark will not be deducted for a wrong answer.
Any rough working should be done in this booklet.
Electronic calculators may be used.
Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

The syllabus is approved for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate.

This document consists of 16 printed pages.

IB18 06_0625_12/2RP
© UCLES 2018 [Turn over
 2

1 A length of cotton is measured between two points on a ruler.

cotton

cm 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

When the length of cotton is wound closely around a pen, it goes round six times.

six turns of cotton

pen

What is the distance once round the pen?

A 2.2 cm B 2.6 cm C 13.2 cm D 15.6 cm

2 A ball is dropped in an evacuated tube. A series of photographs is taken at equal time intervals
from the time of release. Another ball of the same size but twice the mass is also dropped in the
same evacuated tube and photographed.

Which diagram shows the motion of the heavier ball?

heavier ball (mass ×2)

first ball A B C D

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3 A car takes 15 minutes to travel along a road that is 20 km long.

What is the average speed of the car?

A 0.75 km / h B 5.0 km / h C 80 km / h D 300 km / h

4 Which statement about the mass and the weight of an object is correct?

A They are both affected by changes in the acceleration of free fall.

B They are both forces.
C They have different units.
D Weight is calculated by dividing mass by the acceleration of free fall.

5 Two objects P and Q are placed in a beaker containing a liquid.

Object P floats in the liquid and object Q sinks.

Which row for the densities of object P, object Q and the liquid is possible?

density of object P density of object Q density of liquid

g / cm 3 g / cm3 g / cm 3

A 1.2 0.6 0.8

B 1.2 1.4 1.0
C 11.3 8.9 13.6
D 11.3 19.3 13.6

6 The diagram shows some liquid in a measuring cylinder.

The mass of the liquid is 16 g.

25
cm3
20

15

10

What is the density of the liquid?

A 0.80 g / cm 3 B 1.25 g / cm 3 C 36 g / cm 3 D 320 g / cm 3

© UCLES 2018 0625/12/M/J/18 [Turn over

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7 A spacecraft is travelling in space with no resultant force and no resultant moment acting on it.

Which statement about the spacecraft is correct?

A Its direction is changing.

B It is in equilibrium.
C Its speed is decreasing.
D Its speed is increasing.

8 A man holds a short ladder in four different positions.

The weight of the ladder causes a moment about the man’s shoulder.

In which position is the moment greatest?

A B C D

9 A hole is drilled in a square tile. The diagram shows the tile hanging freely on a nail.

Where is the centre of mass of the tile?

A
nail

tile
D

B
C

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 5

10 Which source of energy is renewable?

A coal
B natural gas
C oil
D wind

11 A student does work by pulling a box across a horizontal floor.

She now pulls a second box along the same floor.

Which row indicates that the student is now doing twice as much work?

force used distance the

to pull box box is pulled

A is doubled is doubled
B is doubled is halved
C stays the same is doubled
D stays the same is halved

12 Air is trapped in a closed tube by a thread of mercury. The mercury thread is 100 mm long. The
tube is held as shown.

air

mercury
100 mm

Atmospheric pressure is 770 mm Hg.

What is the pressure of the trapped air?

A 100 mm Hg B 670 mm Hg C 770 mm Hg D 870 mm Hg

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 6

13 Brownian motion is the random motion of particles due to molecular bombardment.

In which states of matter is Brownian motion observed?

A gases, liquids and solids

B gases and liquids only
C gases and solids only
D liquids and solids only

14 The diagram shows the relative number of molecules in a liquid that have a given kinetic energy.

The graph is divided into sections so that each section contains the same number of molecules.

From which section does the greatest number of molecules escape from the liquid per unit time?

relative number
of molecules

A B C D
0
0 kinetic energy

15 An electric kettle heats some water. The same kettle then heats a different liquid. The
temperature of the liquid rises more rapidly than the temperature of the water.

What is a possible explanation of this difference?

A The liquid condenses on the cooler parts of the kettle less than the water does.
B The liquid expands more than the water as it heats up.
C The liquid has a lower boiling point than the water.
D The liquid has a smaller thermal capacity than the water.

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16 A wooden wheel can be strengthened by putting a tight circle of iron around it.

wooden wheel

iron circle

Which action would make it easier to fit the circle over the wood?

A cooling the iron circle

B heating the iron circle
C heating the wooden wheel and cooling the iron circle
D heating the wooden wheel but not heating or cooling the iron circle

17 A student wishes to calibrate a mercury-in-glass thermometer with a °C scale.

Which values should she use for the lower fixed point and for the upper fixed point?

lower fixed point upper fixed point

A melting point of ice boiling point of mercury

B melting point of ice boiling point of water
C melting point of mercury boiling point of mercury
D melting point of mercury boiling point of water

18 Four thermometers, with their bulbs painted different colours, are placed at equal distances from
a radiant heater.

Which thermometer shows the slowest temperature rise when the heater is first switched on?

A matt black
B matt white
C shiny black
D shiny white

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19 A tank contains water. Ripples are produced on the surface of the water.

What causes the ripples to refract?

A The cold water in the tank is replaced by warm water.

B The ripples change speed as they move from deep to shallow water.
C The ripples hit the wall of the tank.
D The ripples pass through a narrow gap.

20 The diagrams show a wave on the surface of the water in a tank at times 1.0 s apart. The wave is
produced at P and travels to the right.

4.0 cm

Which row gives the frequency and the speed of this water wave?

frequency speed
/ Hz cm / s

A 2.0 4.0
B 2.0 8.0
C 4.0 4.0
D 4.0 8.0

21 Light passes from glass into air.

Which diagram shows a ray of light incident at the critical angle on the air-glass boundary?

A B C D

glass glass glass glass

air air air air

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 9

22 Scout P signals to scout Q on the other side of a valley by using a mirror to reflect the Sun’s light.

Sun’s
scout P light

mirror

scout Q

Which mirror position allows the Sun’s light to be reflected to scout Q?

A B C D
mirror Sun’s Sun’s Sun’s Sun’s
light light light light

23 The table describes white light that passes through a prism and forms a spectrum.

Which row is correct?

colour refracted colour next

the most to the red

A red orange
B red yellow
C violet orange
D violet yellow

24 Where do all types of electromagnetic waves travel at the same speed?

A air
B a vacuum
C glass
D water

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 10

25 A siren is emitting a sound. As time passes, the sound becomes louder and higher pitched.

What is happening to the amplitude and to the frequency of the emitted sound wave?

amplitude frequency

A decreasing decreasing
B decreasing increasing
C increasing decreasing
D increasing increasing

26 A permanent magnet is placed close to a bar of soft iron.

permanent
S N P Q soft iron bar
magnet

What are the polarities of end P and of end Q?

end P end Q

A N N
B N S
C S N
D S S

27 The diagrams show three ammeters.

1 2 3

2.0 3.0 4.0 6.0

0

0
4.

8.
1.

2.

4.50 A
0

0
10.0
0.0

0.0
5.0

A A

Which ammeters show the same value of current?

A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

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 15

37 In the atomic model, an atom consists of a central mass, orbited by much smaller particles.

orbiting central
particle mass

What is the name of the central mass and of the orbiting particles?

central mass orbiting particles

A neutron α-particles
B neutron electrons
C nucleus α-particles
D nucleus electrons

38 The table shows the composition of three different nuclei.

number of number of
nucleus
protons neutrons

X 3 3
Y 3 4
Z 4 3

Which nuclei are isotopes of the same element?

A X, Y and Z B X and Y only C X and Z only D Y and Z only

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35 A transformer has Np turns in the primary coil and Ns turns in the secondary coil.

Which row gives the values of Np and Ns for a transformer that steps up a voltage of 1200 V to
36 000 V?

Np Ns

A 2 000 60 000
B 2 000 600 000
C 60 000 2 000
D 600 000 2 000

36 A straight wire is perpendicular to the paper. It carries a current into the paper.

What is the magnetic field pattern and its direction near the wire?

A B C D

key
wire with current into the page

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 13

32 A student sets up this circuit.

What is the purpose of the circuit?

A to allow a lamp to be made dimmer or brighter as required

B to amplify the sound of a voice
C to light a lamp in the dark
D to sound a bell when the temperature rises

33 The diagram shows two voltmeters P and Q connected to a potential divider.

V voltmeter P
X

V voltmeter Q

The sliding connection at point X is moved towards the top of the diagram.

What happens to the reading on P and to the reading on Q?

reading on P reading on Q

A decreases decreases
B decreases increases
C increases decreases
D increases increases

34 A simple electric generator induces an electromotive force (e.m.f.).

Which modification would increase the induced e.m.f.?

A Increase the number of turns in the coil of the generator.

B Increase the distance between the magnetic poles.
C Reduce the strength of the magnetic field around the coil.
D Reverse the direction of the magnetic field.

© UCLES 2018 0625/12/M/J/18 [Turn over

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30 An electrical heater transfers thermal energy to the surroundings.

The graph shows how the amount of thermal energy transferred varies with time.

400
thermal energy
transferred / J 300

200

100

0
0 2.0 4.0 6.0 8.0 10.0
time / s

The heater continues to transfer energy at the same rate.

How much thermal energy is transferred by the heater in 5.0 minutes?

A 200 J B 400 J C 2000 J D 12 000 J

31 Which electrical component does the symbol represent?

A a fuse
B a relay coil
C a thermistor
D a variable resistor

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 11

28 A student measures the potential difference across a device and the current in the device.

Which calculation gives the resistance of the device?

A current + potential difference

B current ÷ potential difference

C potential difference ÷ current

D potential difference × current

29 A lamp is connected across one cell, then across two cells. The potential difference (p.d.) across
the lamp and the current in it are measured in each case.

The results are shown.

number
p.d. / V current / A
of cells

1 2.8 0.25
2 5.4 0.40

What is the change in the resistance of the lamp when the number of cells is increased from one
to two?

A It decreases by 0.015 Ω.

B It increases by 1.5 Ω.

C It increases by 2.3 Ω.

D It increases by 17 Ω.

© UCLES 2018 0625/12/M/J/18 [Turn over

 16

39 The table compares the penetrating abilities and ionising effects of α-radiation and of γ-radiation.

Which row is correct?

least most
penetrating ionising

A α α
B α γ
C γ α
D γ γ

40 Radioactive materials must be handled in a safe way.

What is not a safety procedure?

A Monitor exposure time to radioactive materials.

B Store radioactive materials in cardboard boxes.
C Use tongs to pick up the radioactive source.
D Wear protective clothing.

Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every
reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the
publisher will be pleased to make amends at the earliest possible opportunity.

To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge
International Examinations Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at
www.cie.org.uk after the live examination series.

Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of Cambridge Local
Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.

© UCLES 2018 0625/12/M/J/18

 Cambridge International Examinations
Cambridge International General Certificate of Secondary Education

PHYSICS 0625/12
Paper 1 Multiple Choice (Core) February/March 2018
45 minutes
Additional Materials: Multiple Choice Answer Sheet
Soft clean eraser
*8208222047*

Soft pencil (type B or HB recommended)

READ THESE INSTRUCTIONS FIRST

Write in soft pencil.

Do not use staples, paper clips, glue or correction fluid.
Write your name, Centre number and candidate number on the Answer Sheet in the spaces provided
unless this has been done for you.
DO NOT WRITE IN ANY BARCODES.

There are forty questions on this paper. Answer all questions. For each question there are four possible
answers A, B, C and D.
Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet.

Read the instructions on the Answer Sheet very carefully.

Each correct answer will score one mark. A mark will not be deducted for a wrong answer.
Any rough working should be done in this booklet.
Electronic calculators may be used.
Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

The syllabus is approved for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate.

This document consists of 18 printed pages and 2 blank pages.

IB18 03_0625_12/3RP
© UCLES 2018 [Turn over
 2

1 A student is asked to find the volume of a small irregularly-shaped piece of rock.

He has the following apparatus available.

100
90
80
70
60
50
40
30
20
10
0 10 20 30 40 50 60 70 80 90 100

balance measuring cylinder rule

containing water

Which apparatus must the student use to find the volume of the small piece of rock?

A balance and rule

B rule only
C balance and measuring cylinder
D measuring cylinder only

2 The speed-time graph represents the motion of a car travelling along a straight level road.

speed

0
0 time

Which statement describes the motion of the car?

A It accelerates and reaches a constant speed.

B It accelerates and then stops moving.
C It decelerates and then reaches a constant speed.
D It decelerates and then stops moving.

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3 An athlete runs 300 metres up a hill at a steady speed of 3.0 m / s.

She then immediately runs the same distance down the hill at a steady speed of 6.0 m / s.

What is her average speed for the 600 metre run?

A 2.0 m / s B 3.0 m / s C 4.0 m / s D 4.5 m / s

4 Which statement is correct?

A Mass is a gravitational force but weight is not a gravitational force.

B Mass is not a gravitational force and weight is not a gravitational force.
C The unit of mass is the kilogram and the unit of weight is the newton.
D The unit of mass is the newton and the unit of weight is the kilogram.

5 The diagram shows a bird in flight. The bird is flying in a horizontal direction to the right.

In which direction does air resistance act on the bird?

D B

© UCLES 2018 0625/12/F/M/18 [Turn over

 4

6 A measuring cylinder contains 30 cm3 of a liquid.

cm3

50

40

30

20

10

balance

Some more of the liquid is added until the liquid level reaches the 50 cm3 mark.

The reading on the balance increases by 30 g.

What is the density of the liquid?

A 0.60 g / cm3 B 0.67 g / cm3 C 1.5 g / cm3 D 1.7 g / cm3

7 A car is travelling along a straight horizontal road. The speed-time graph is shown.

In which labelled part of the journey is the resultant force on the car zero?

C
speed

B
D

A
0
0 time

8 The diagram shows a uniform metre rule balanced at its mid-point.

0 20 50 70 100

W 6.0 N

What is the weight W placed at the 20 cm mark?

A 0.25 N B 4.0 N C 9.0 N D 21 N

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9 A wooden plank rests in equilibrium on two rocks on opposite sides of a narrow stream.

Three forces P, Q and R act on the plank.

P R
plank

How are the sizes of the forces related?

A P+Q=R
B P+R=Q
C P=Q=R
D P=Q+R

10 A ball is at rest at the top of a hill. It rolls down the hill. At the bottom of the hill the ball hits a wall
and stops.

Which energy changes occur?

A gravitational potential energy → internal energy → kinetic energy

B gravitational potential energy → kinetic energy → internal energy

C kinetic energy → gravitational potential energy → internal energy

D kinetic energy → internal energy → gravitational potential energy

© UCLES 2018 0625/12/F/M/18 [Turn over

 6

11 A man pulls a truck a distance of 20 m, as shown in the three diagrams.

1 2
10 m
10 m
10 m
10 m

3
10 m

10 m

Which statement concerning the work done against gravity is correct?

A Most work is done in 1.

B No work is done in 3.
C The work done in all three is equal.
D The work done in 1 and 2 is equal.

12 Which source of energy is used in a nuclear power station to generate electrical energy?

A different types of atom regrouping

B heavy nuclei splitting
C radioactive isotopes decaying

D radioactive atoms emitting β-particles

13 Two beakers are filled to the same depth, one with water and one with oil.

The density of water is 1000 kg / m3 and the density of oil is 920 kg / m3.

In which position is the pressure the greatest?

A C
water oil

B D

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15 A cylinder with a tap contains a fixed mass of gas X. The gas is contained by a piston which can
move freely towards or away from the tap.

atmosphere
gas X
tap closed
piston

cylinder

When the tap is opened, the piston moves slightly to the right, towards the tap.

atmosphere
gas X
tap open

What can be deduced about the pressure of gas X?

before opening tap after opening tap

A less than atmospheric pressure more than atmospheric pressure

B same as atmospheric pressure more than atmospheric pressure
C more than atmospheric pressure less than atmospheric pressure
D more than atmospheric pressure same as atmospheric pressure

16 Which quantity does not change when there is an increase in temperature?

A the density of a steel block

B the diameter of the hole in a metal nut
C the length of an iron rod
D the mass of a metal coin

17 A thermometer has a low thermal capacity.

Why is this an advantage?

A The thermometer does not absorb much thermal energy to raise its own temperature.
B The thermometer does not conduct much thermal energy to the surroundings.
C The thermometer does not melt when it gets hot.
D The thermometer does not radiate much thermal energy to the surroundings.

© UCLES 2018 0625/12/F/M/18

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18 In an experiment, a thermometer is placed in a test-tube of hot liquid. The temperature reading of

the liquid is recorded every half minute. The table shows the results.

time / minutes 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5
temperature / °C 73 65 59 55 55 55 51 48 45 42 40 38 36 35 34 33

What is the melting point of the substance?

A 0 °C B 33 °C C 55 °C D 73 °C

19 A teacher demonstrates an experiment to a class. A boiling tube is filled with water and some ice
cubes are trapped at the bottom of the tube. The teacher then heats the boiling tube in the
position shown until the water at the top boils.

water

ice heat

metal mesh

The ice does not melt.

What does this demonstrate?

A Water is a good conductor of thermal energy.

B Water is a good convector of thermal energy.
C Water is a poor conductor of thermal energy.
D Water is a poor convector of thermal energy.

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20 A hot metal plate is placed near to a cold metal plate. Infra-red radiation transfers thermal energy
between the two plates.

hot plate

cold plate

Which choice of colour causes the temperature of the cold plate to increase most slowly?

hot plate cold plate

A matt black matt black

B matt black shiny white
C shiny white matt black
D shiny white shiny white

21 Which row shows an example of a transverse wave and an example of a longitudinal wave?

transverse longitudinal

A light radio
B radio sound
C sound water
D water light

22 An object is placed before a plane mirror as shown.

A student views the image of the object in the mirror from point P.

Where does she see the image?

object B C D

mirror

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 15

33 A circuit contains four ammeters and three resistors with different values.

Which ammeter shows the largest reading?

A A D
10 Ω
A
B A
20 Ω

30 Ω
A
C

34 The diagram shows the arrangement of the coil, armature and contacts of a relay.

Which diagram shows this arrangement when there is no current in the coil?

A B

pivot contacts

coil
armature

C D

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31 The diagram shows a circuit containing a cell, an ammeter, a lamp and a variable resistor.

The resistance of the variable resistor is increased.

What happens to the ammeter reading and what happens to the brightness of the lamp?

ammeter reading lamp brightness

A decreases decreases
B decreases increases
C increases decreases
D increases increases

32 Diagram 1 shows two identical lamps connected in series with a cell. Diagram 2 shows the same
two lamps connected in parallel with an identical cell.

diagram 1 diagram 2

Which statement is correct?

A The cell in diagram 1 can supply current to the lamps for longer than the cell in diagram 2.
B The current in the cell in diagram 1 is greater than the current in the cell in diagram 2.
C The lamps in diagram 1 are brighter than the lamps in diagram 2.
D The voltage across each lamp in diagram 1 is greater than the voltage in diagram 2.

© UCLES 2018 0625/12/F/M/18

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29 A student sets up the circuit shown to measure three quantities.

1 the current in the circuit

2 the electromotive force (e.m.f.) of the cell
3 the potential difference across the lamp

How many ammeters and how many voltmeters are needed?

ammeters voltmeters

A 0 3
B 1 2
C 2 1
D 3 0

30 The current in a car headlamp is 3.0 A when connected to a 12 V battery.

What is the resistance of the lamp when it is lit?

A 0.25 Ω B 4.0 Ω C 15 Ω D 36 Ω

© UCLES 2018 0625/12/F/M/18 [Turn over

 12

27 Which diagram shows the magnetic field around a bar magnet?

A B

N S N S

C D

N S N S

28 A metal conductor is connected to a battery.

Which statement describes the current in the metal conductor?

A It is a flow of electrons from the negative to the positive terminal.

B It is a flow of electrons from the positive to the negative terminal.
C It is a flow of protons from the negative to the positive terminal.
D It is a flow of protons from the positive to the negative terminal.

© UCLES 2018 0625/12/F/M/18

 11

23 Light passes through a prism as shown. The light changes direction and produces a spectrum of
colours.

white light spectrum

of colours

Which term is used to describe the production of the spectrum of colours?

A diffraction
B dispersion
C refraction
D total internal reflection

24 Which type of waves are produced by a television remote controller?

A infra-red waves
B radio waves
C ultraviolet waves
D visible light

25 Both the amplitude and the frequency of a sound wave decrease.

What happens to the sound heard?

A The sound is louder and has a higher pitch.

B The sound is louder and has a lower pitch.
C The sound is quieter and has a higher pitch.
D The sound is quieter and has a lower pitch.

26 An electromagnet is used to remove a splinter from an eye.

What material is the splinter made from?

A aluminium
B glass
C iron
D wood

© UCLES 2018 0625/12/F/M/18 [Turn over

 16

35 The diagram represents a magnetic field.

What causes this field?

A a bar magnet
B a solenoid carrying a current
C a straight wire carrying a current
D two north poles close together

36 The diagram shows a simple d.c. electric motor which is rotating.

coil

magnet S N magnet

Which change makes the motor rotate more quickly?

A increasing the number of turns on the coil

B removing the magnets
C reversing the battery
D reversing the polarity of the magnets

© UCLES 2018 0625/12/F/M/18

 17

23
37 The notation for an isotope of sodium is 11 Na .

Which row gives the composition of a neutral atom of this isotope of sodium?

number of number of number of

protons neutrons electrons

A 11 12 11
B 11 12 12
C 11 23 11
D 12 11 12

38 Which diagram represents a nucleus of 31H ?

A B C D
key
p n p
n n = a neutron
n n p p
n p p n
p n p = a proton

39 When measuring the emissions from a radioactive rock brought into the laboratory, a teacher
mentions that background radiation must be taken into account.

What is this background radiation?

A infra-red radiation from warm objects in the laboratory

B infra-red radiation from the Sun
C ionising radiation from the radioactive rock brought into the laboratory
D ionising radiation in the laboratory when the radioactive rock is not present

© UCLES 2018 0625/12/F/M/18 [Turn over

 18

40 The graph shows the percentage of a radioactive isotope that remains as time passes.

100
percentage
of isotope
75
remaining / %

50

25

0
0 5 10 15 20 25 30 35 40
time / minutes

A student measures the initial rate of emission of this isotope as 40 000 emissions per second.

How long does it take for the rate of emission to fall to 5000 emissions per second?

A 5 minutes B 15 minutes C 20 minutes D 40 minutes

© UCLES 2018 0625/12/F/M/18

 2

1 A pendulum is set in motion and timed. The time measured for 20 complete swings is 30 s.

What is the time for one complete swing of the pendulum?

A 0.67 s B 0.75 s C 1.5 s D 3.0 s

2 The graph shows how the speed of an object varies with time.

At which point on the graph is the greatest distance travelled per second?

D
speed
C
B

0
0 time

3 An athlete runs at a speed of 8 m / s for 10 s, and then at a speed of 6 m / s for 12 s.

Which calculation gives the average speed of the athlete in m / s?

A 8+6
2

(8 × 10) + (6 × 12)
B
22

(8 ÷ 10) + (6 ÷ 12)
C
22

(10 ÷ 8) + (12 ÷ 6)
D
22

4 Which quantity is measured in newtons?

A energy
B mass
C weight
D work

© UCLES 2018 0625/12/O/N/18

 3

5 An object is suspended from a spring balance on the Earth. The same object is suspended from
the same spring balance on another planet.

0 0

1 1

2 2

3 3

4 4

reading on reading on
Earth another planet

Which statement explains the difference between the two readings?

A Both the mass and the weight of the object are greater on the other planet.
B The mass of the object is greater on the other planet than on Earth, but the weight is
unchanged.
C The spring stretches more easily when on the other planet.
D The weight of the object is greater on the other planet than on Earth, but the mass is
unchanged.

6 The diagram shows four blocks of different metals. Each block has a mass of 12 g.

Which metal has the largest density?

A B

1 cm
1 cm
2 cm
1 cm
2 cm 2 cm

C D

1 cm
1 cm
2 cm
1 cm
3 cm 3 cm

© UCLES 2018 0625/12/O/N/18 [Turn over

 Cambridge International Examinations
Cambridge International General Certificate of Secondary Education

PHYSICS 0625/12
Paper 1 Multiple Choice (Core) October/November 2018
45 minutes
Additional Materials: Multiple Choice Answer Sheet
Soft clean eraser
*0300250686*

Soft pencil (type B or HB recommended)

READ THESE INSTRUCTIONS FIRST

Write in soft pencil.

Do not use staples, paper clips, glue or correction fluid.
Write your name, Centre number and candidate number on the Answer Sheet in the spaces provided
unless this has been done for you.
DO NOT WRITE IN ANY BARCODES.

There are forty questions on this paper. Answer all questions. For each question there are four possible
answers A, B, C and D.
Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet.

Read the instructions on the Answer Sheet very carefully.

Each correct answer will score one mark. A mark will not be deducted for a wrong answer.
Any rough working should be done in this booklet.
Electronic calculators may be used.
Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

The syllabus is approved for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate.

This document consists of 16 printed pages.

IB18 11_0625_12/3RP
© UCLES 2018 [Turn over
 4

7 Which is an example of a force?

A density
B mass
C volume
D weight

8 A car moves along a level road.

The diagram shows all of the horizontal forces acting on the car.

800 N
air resistance
2000 N force
500 N from engine
friction

Which statement is correct?

A The car is slowing down.

B The car is speeding up.
C The car is moving at a constant speed.
D The car is moving backwards.

9 Point X is the centre of mass of a lamina in the shape of a triangle with sides of equal length. The
top of the triangle is cut off along the dotted line shown.

What happens to the centre of mass, X?

A moves towards the bottom of the page

B moves to the left
C moves to the right
D moves towards the top of the page

© UCLES 2018 0625/12/O/N/18

 9

22 The diagram shows two plane mirrors at 90° to each other. A ray of light is incident on one of the
mirrors. The ray reflects off both mirrors before reaching a screen.

At which labelled point does the ray reach the screen?

screen
A

ray of
light

23 Which diagram shows the formation of a real image of an object O placed in front of a converging
lens?

A B

O O

C D

O O

© UCLES 2018 0625/12/O/N/18 [Turn over

 8

19 Which statement about convection is not correct?

A It enables water in a pan on a cooker to get evenly heated.

B It happens in liquids and gases.
C It means that heat rises.
D It occurs because the density of a fluid decreases when it is heated.

20 What is meant by the frequency of a water wave?

A the distance between consecutive crests of the wave

B the distance moved by the wave per unit time
C the maximum vertical displacement of the wave
D the number of crests passing a point per unit time

21 Plane water waves travel from a shallow region into a deeper region. They travel more quickly in
the deeper water.

shallow water

boundary
wave
direction
deep water

Which diagram shows the wave pattern in the deeper water?

A B C D

© UCLES 2018 0625/12/O/N/18

 7

16 The metal lid on a glass jar is difficult to unscrew.

The jar is placed in a warm oven until the jar and the lid reach the same temperature. The lid is
now easily unscrewed.

Which property accounts for this?

A thermal capacity of the jar

B thermal capacity of the lid
C thermal conduction
D thermal expansion

17 Two cold metal containers X and Y are both filled with the same mass of hot water at the same
temperature.

Both containers are well insulated.

The thermal capacity of container X is greater than that of container Y.

How do the final temperatures of the water in X and in Y compare?

A The temperature in X is higher than in Y.

B The temperature in X is lower than in Y.
C The temperatures in X and in Y are equal but lower than the initial temperature of the water.
D The temperatures in X and in Y are the same as the initial temperature of the water.

18 Some of the Sun’s radiation passes through a prism. The diagram shows the spectrum of the
radiation.

Which point on the screen does the infra-red radiation reach?

prism

radiation
from the
Sun
not v
isi
red ble
A
e B
ibl C
no v vis
t v iole
isi t
ble
screen D

© UCLES 2018 0625/12/O/N/18 [Turn over

 10

24 Different parts of the electromagnetic spectrum are used for different purposes. Below are four
statements about parts of the spectrum.

statement 1: Infra-red waves are used in television remote controllers.

statement 2: Radio waves are used to transmit television pictures from satellites to Earth.
statement 3: Ultraviolet waves are used for intruder alarms.
statement 4: X-rays are used for security checks.

Which statements are correct?

A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4

25 Which statement about ultrasound is correct?

A Ultrasound must have greater amplitude than audible sound.

B Ultrasound must have greater frequency than audible sound.
C Ultrasound must have lower amplitude than audible sound.
D Ultrasound must have lower frequency than audible sound.

26 An iron bar PQ is placed close to a bar magnet.

In which diagram does end P become an induced north pole?

A B C D

S P N P S P

N Q S Q N Q

P S

Q N

© UCLES 2018 0625/12/O/N/18

 15

36 The diagram shows a coil of wire between the poles of a magnet.

20 turns

N S

+ –
power
supply

The coil consists of 20 turns of insulated wire.

The coil is connected to a variable resistor and a power supply.

How can the turning effect on the coil be increased?

A by moving the poles of the magnet closer to the coil

B by reducing the number of turns on the coil while keeping the current constant
C by increasing the resistance of the variable resistor
D by reversing the terminals of the power supply

37 Which diagram represents the structure of a neutral atom?

A B C D
key
– – – –
neutron

++ ++ + proton
+ ++
+ – electron

– – –

38 The nuclide notation for the isotope lithium-7 is 73 Li .

How many neutrons are there in an atom of lithium-7?

A 3 B 4 C 7 D 10

© UCLES 2018 0625/12/O/N/18 [Turn over

 16

39 The diagram shows the paths of three different types of radiation X, Y and Z.

2 mm of 10 mm of 50 mm
plastic aluminium of lead

Which row correctly identifies X, Y and Z?

X Y Z

A α-particles β-particles γ-rays

B β-particles α-particles γ-rays
C β-particles γ-rays α-particles
D γ-rays α-particles β-particles

40 Samples of four different radioactive isotopes all emit radiation at the same rate.

As time passes, the rates of emission decrease for all the samples.

Which sample of isotope has the greatest decrease in rate?

isotope half-life

A americium-241 470 years

B iodine-128 25 minutes
C thoron-220 54.5 seconds
D uranium-237 6.75 days

Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every
reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the
publisher will be pleased to make amends at the earliest possible opportunity.

To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge
International Examinations Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at
www.cie.org.uk after the live examination series.

Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of Cambridge Local
Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.

© UCLES 2018 0625/12/O/N/18

 Cambridge International Examinations
Cambridge International General Certificate of Secondary Education

PHYSICS 0625/13
Paper 1 Multiple Choice (Core) October/November 2018
45 minutes
Additional Materials: Multiple Choice Answer Sheet
Soft clean eraser
*6069758649*

Soft pencil (type B or HB recommended)

READ THESE INSTRUCTIONS FIRST

Write in soft pencil.

Do not use staples, paper clips, glue or correction fluid.
Write your name, Centre number and candidate number on the Answer Sheet in the spaces provided
unless this has been done for you.
DO NOT WRITE IN ANY BARCODES.

There are forty questions on this paper. Answer all questions. For each question there are four possible
answers A, B, C and D.
Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet.

Read the instructions on the Answer Sheet very carefully.

Each correct answer will score one mark. A mark will not be deducted for a wrong answer.
Any rough working should be done in this booklet.
Electronic calculators may be used.
Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

The syllabus is approved for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate.

This document consists of 16 printed pages.

IB18 11_0625_13/2RP
© UCLES 2018 [Turn over
 2

1 A pendulum is set in motion and timed. The time measured for 20 complete swings is 30 s.

What is the time for one complete swing of the pendulum?

A 0.67 s B 0.75 s C 1.5 s D 3.0 s

2 A girl goes for a ride on her bicycle.

The diagram shows how her speed changes with time for part of her journey.

In which labelled section is she moving with constant speed?

speed

0
0 A B C D time

3 A boy runs 400 m at an average speed of 4.0 m / s.

He runs the first 200 m in 40 s.

How long does he take to run the second 200 m?

A 60 s B 66.7 s C 80 s D 140 s

4 Which quantity is measured in newtons?

A energy
B mass
C weight
D work

5 The acceleration of free fall on Mars is 3.7 m / s2.

What is the weight of a 100 g mass on Mars?

A 0.037 N B 0.37 N C 37 N D 370 N

© UCLES 2018 0625/13/O/N/18

 3

6 A student carries out experiments to find the mass and the volume of four samples of rock.

The graph shows the results.

sample P sample Q
200
mass / g

sample R sample S
100

0
0 50 100
volume / cm3

Which pair are samples of the same type of rock?

A P and Q B P and S C R and Q D Q and S

7 Four objects each have two forces acting on them.

Which object is in equilibrium?

A B C D
1.0 N 1.0 N 1.0 N
1.0 N 1.0 N
1.0 N
1.0 N 1.0 N

8 A car moves along a level road.

The diagram shows all of the horizontal forces acting on the car.

800 N
air resistance
2000 N force
500 N from engine
friction

Which statement is correct?

A The car is slowing down.

B The car is speeding up.
C The car is moving at a constant speed.
D The car is moving backwards.

© UCLES 2018 0625/13/O/N/18 [Turn over

 4

9 The diagram shows an aluminium sheet of constant thickness.

Four significant points on the aluminium sheet are labelled P, Q, R and S.

Q
R

How can the centre of mass be found?

A by finding where a line from P to R crosses a line from S to Q

B by suspending the sheet and a plumb-line from Q and finding where the plumb-line crosses a
line from P to R
C by suspending the sheet and a plumb-line from P and then from S and finding where the
plumb-lines cross
D by suspending the sheet and a plumb-line from P and finding where the plumb-line crosses a
line from S to Q

10 Which device is designed to convert chemical energy into kinetic energy?

A an a.c. generator
B a battery-powered torch
C a car engine
D a wind-up mechanical clock

11 A weight hangs from a rope.

force

weight

In which case does the force do the most work on the weight?

A The force raises the weight 1.0 m in 15 s.

B The force raises the weight 2.0 m in 45 s.
C The weight is held at the same level for 10 s.
D The weight is held at the same level for 60 s.

© UCLES 2018 0625/13/O/N/18

 9

22 A plane mirror is fixed so that it is at an angle of 45° to a table. A ray of light, initially parallel to
the table, is incident on the mirror.

plane mirror

ray of light

45° table

Which angle does the reflected ray make with the table?

A 0° B 22.5° C 45° D 90°

23 An object is placed 20 cm in front of a thin converging lens. The scale drawing shows how the
lens forms a real, inverted image.

object

image

scale
5.0 cm

Which row gives the focal length of the lens and the distance of the image from the lens?

focal length distance of image

of lens / cm from lens / cm

A 4.0 5.0
B 5.0 4.0
C 8.0 10.0
D 10.0 8.0

© UCLES 2018 0625/13/O/N/18 [Turn over

 15

36 Which diagram shows the pattern and direction of the magnetic field due to a current in a straight
wire?

A B

current current

C D

current current

37 Which diagram represents the structure of a neutral atom?

A B C D
key
– – – –
neutron

++ ++ + proton
+ ++
+ – electron

– – –

© UCLES 2018 0625/13/O/N/18 [Turn over

 14

34 Either a fuse or a circuit-breaker can be used to protect electrical cables from large currents that
could cause overheating.

X cable
live

electrical Y appliance
supply

neutral
cable

When a fuse is used, where should it be connected, and when a circuit-breaker is used, where
should it be connected?

position position of
of fuse circuit-breaker

A X X
B X Y
C Y X
D Y Y

35 There is an electric current in a wire. The wire is placed in a magnetic field. A force acts on the
wire due to the current.

Which statement is correct?

A The magnetic field must be produced by a permanent magnet and not by an electromagnet.
B The wire must be made from a magnetic material.
C When both the current and the magnetic field are reversed, the direction of the force is
unchanged.
D When the current is reversed, but not the magnetic field, there will be no force on the wire.

© UCLES 2018 0625/13/O/N/18

 10

24 Different parts of the electromagnetic spectrum are used for different purposes. Below are four
statements about parts of the spectrum.

statement 1: Infra-red waves are used in television remote controllers.

statement 2: Radio waves are used to transmit television pictures from satellites to Earth.
statement 3: Ultraviolet waves are used for intruder alarms.
statement 4: X-rays are used for security checks.

Which statements are correct?

A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4

25 Which row gives the nature of sound waves and the name of the effect that causes an echo of a
sound?

nature of sound waves effect causing an echo

A longitudinal reflection
B longitudinal refraction
C transverse reflection
D transverse refraction

26 Which diagram shows the pattern and the direction of the magnetic field lines around a bar
magnet?

A B

N S N S

C D

N S N S

© UCLES 2018 0625/13/O/N/18

 16

12
38 What is a carbon nucleus, 6C , composed of?

A 6 neutrons and 6 electrons

B 6 neutrons, 6 protons and 6 electrons
C 6 protons and 6 electrons
D 6 protons and 6 neutrons

39 The diagram shows the paths of three different types of radiation X, Y and Z.

2 mm of 10 mm of 50 mm
plastic aluminium of lead

Which row correctly identifies X, Y and Z?

X Y Z

A α-particles β-particles γ-rays

B β-particles α-particles γ-rays
C β-particles γ-rays α-particles
D γ-rays α-particles β-particles

40 The count rate due to a sample of a radioactive isotope is measured for 80 minutes.

time count rate

/ minutes counts / second

0 480
20 380
40 300
60 240
80 190

What is the half-life of the isotope?

A 20 minutes B 40 minutes C 60 minutes D 80 minutes

To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge
International Examinations Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at
www.cie.org.uk after the live examination series.

© UCLES 2018 0625/13/O/N/18

 16

39 Which row describes the nature and a property of all β-particles?

nature property

A electrons can travel through a vacuum

B electrons stopped by a thin sheet of paper
C helium nuclei can travel through a vacuum
D helium nuclei stopped by a thin sheet of paper

40 The graph shows how the decay rate of a radioactive source changes with time.

4000
decay rate
3000
decays / s

2000

1000

0
0 2 4 6 8 10
time / days

What will be the activity at 8 days?

A 0 decays / s
B 125 decays / s
C 250 decays / s
D 500 decays / s

Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every
reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the
publisher will be pleased to make amends at the earliest possible opportunity.

To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge
International Examinations Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at
www.cie.org.uk after the live examination series.

Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of Cambridge Local
Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.

© UCLES 2016 0625/12/M/J/16

 15

36 The diagram shows a transformer.

input output
voltage voltage

primary coil secondary coil

800 turns 40 turns

The input voltage is 240 V.

What is the output voltage?

A 6.0 V B 12 V C 20 V D 40 V

37 A neutral atom consists of electrons orbiting a nucleus. The nucleus contains protons and
neutrons.

Which statement about the atom must be correct?

A The number of electrons is equal to the number of neutrons.

B The number of electrons is equal to the number of protons.
C The number of neutrons is equal to the number of protons.
D The number of electrons, neutrons and protons are all different.

38 Below are the symbols for five different nuclides.

35 37 38 81 81
17 X X
17 18 X 35 X 37 X
nuclide 1 nuclide 2 nuclide 3 nuclide 4 nuclide 5

Which two nuclides are isotopes of the same element?

A nuclide 1 and nuclide 2

B nuclide 2 and nuclide 3
C nuclide 2 and nuclide 5
D nuclide 4 and nuclide 5

© UCLES 2016 0625/12/M/J/16 [Turn over

 14

34 A domestic circuit includes a 30 A fuse. This protects the wiring if there is too much current in the
circuit.

In which wire is the 30 A fuse positioned, and what does it do when it operates?

position operation

A live wire disconnects the circuit

B live wire reduces the current to 30 A
C neutral wire disconnects the circuit
D neutral wire reduces the current to 30 A

35 A strong electromagnet is used to attract pins.

current core

coil
pins

What happens when the current in the coil is halved?

A No pins are attracted.

B Some pins are attracted, but not as many.
C The same number of pins is attracted.
D More pins are attracted.

© UCLES 2016 0625/12/M/J/16

 9

21 Which row shows the natures of light waves, sound waves and X-rays?

light waves sound waves X-rays

A longitudinal longitudinal transverse

B longitudinal transverse longitudinal
C transverse longitudinal transverse
D transverse transverse longitudinal

22 Radio waves are received at a house at the bottom of a hill.

radio
waves

house
hill

The waves reach the house because the hill has caused them to be

A diffracted.
B radiated.
C reflected.
D refracted.

© UCLES 2016 0625/12/M/J/16 [Turn over

 Cambridge International Examinations
Cambridge International General Certificate of Secondary Education

PHYSICS 0625/12
Paper 1 Multiple Choice (Core) May/June 2016
45 minutes
Additional Materials: Multiple Choice Answer Sheet
Soft clean eraser
*8209657760*

Soft pencil (type B or HB recommended)

READ THESE INSTRUCTIONS FIRST

Write in soft pencil.

Do not use staples, paper clips, glue or correction fluid.
Write your name, Centre number and candidate number on the Answer Sheet in the spaces provided
unless this has been done for you.
DO NOT WRITE IN ANY BARCODES.

There are forty questions on this paper. Answer all questions. For each question there are four possible
answers A, B, C and D.
Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet.

Read the instructions on the Answer Sheet very carefully.

Each correct answer will score one mark. A mark will not be deducted for a wrong answer.
Any rough working should be done in this booklet.
Electronic calculators may be used.
Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

The syllabus is approved for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate.

This document consists of 16 printed pages.

IB16 06_0625_12/2RP
© UCLES 2016 [Turn over
 2

1 The diagram shows an enlarged drawing of the end of a metre rule. It is being used to measure
the length of a small feather.

10 20 30
mm
cm 1 2 3

What is the length of the feather?

A 19 mm B 29 mm C 19 cm D 29 cm

2 The graph shows how the speed of a van changes with time for part of its journey.

In which labelled section is the van decelerating?

speed

0
0 A B C D time

3 A large stone is dropped from a bridge into a river. Air resistance can be ignored.

Which row describes the acceleration and the speed of the stone as it falls?

acceleration speed of
of the stone the stone

A constant constant
B constant increasing
C increasing constant
D increasing increasing

© UCLES 2016 0625/12/M/J/16

 3

4 A cup contains hot liquid.

Some of the liquid evaporates.

What happens to the mass and what happens to the weight of the liquid in the cup?

mass weight

A decreases decreases
B decreases stays the same
C stays the same decreases
D stays the same stays the same

5 A boy throws a stone. The stone leaves the boy’s hand and moves vertically upwards. Air
resistance can be ignored.

How should the force on the stone be described just after the stone leaves the boy’s hand?

A downwards and constant

B downwards and increasing
C upwards and constant
D upwards and decreasing

6 The diagrams show the dimensions and masses of four regular solid objects. The objects are
made from different metals.

Which metal has the greatest density?

A B C D

2.0 cm
1.0 cm 2.0 cm
1.0 cm

2.0 cm 2.0 cm 1.0 cm 1.0 cm 2.0 cm 2.0 cm

1.0 cm 1.0 cm
mass = 20 g mass = 6.0 g mass = 14 g mass = 32 g

© UCLES 2016 0625/12/M/J/16 [Turn over

 4

7 A car travels along a straight road.

The speed-time graph for this journey is shown.

During which labelled part of the journey is the resultant force on the car zero?

speed

C
B
D

0
0 time

8 The diagrams show four objects A, B, C and D. The centre of mass M of each object is marked
on the diagrams.

Which object is not in equilibrium?

A B C D

M
M
M M

9 A skier walks from the bottom of a ski slope to the top and gains 10 000 J of gravitational potential
energy.

She skis down the slope. At the bottom of the slope, her kinetic energy is 2000 J.

How much energy is dissipated in overcoming friction and air resistance as the skier moves down
the slope?

A 2000 J B 8000 J C 10 000 J D 12 000 J

© UCLES 2016 0625/12/M/J/16

 5

10 Which energy source is one that is used to boil water to make steam in power stations?

A energy from tides

B energy from waves
C hydroelectric energy
D nuclear energy

11 In a factory, two men X and Y try to move identical heavy boxes P and Q.

Man X tries to push box P along the floor. The box does not move because an object is in the
way.

Man Y lifts box Q from the floor onto a shelf.

shelf
box P man X man Y

direction
of force
object

direction of force box Q

Which man does the most work on the box, and which box gains the most energy?

man doing box gaining

most work most energy

A X P
B X Q
C Y P
D Y Q

© UCLES 2016 0625/12/M/J/16 [Turn over

 Cambridge International Examinations
Cambridge International General Certificate of Secondary Education

PHYSICS 0625/12
February/March 2016
45 minutes
*7917388689*

READ THESE INSTRUCTIONS FIRST

NOT

forty all
A B C D
one soft pencil

Read the instructions on the Answer Sheet very carefully.

The syllabus is approved for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate.

17 3

IB16 03_0625_12/3RP
© UCLES 2016 [Turn over
 2

1 A student wishes to find the volume of a small, irregularly-shaped stone.

stone

A ruler and a measuring cylinder containing some water are available.

Which apparatus is needed?

A neither the ruler nor the measuring cylinder

B the measuring cylinder only
C the ruler and the measuring cylinder
D the ruler only

2 A ball is dropped from a table-top. Air resistance may be ignored.

Which row describes the velocity and the acceleration of the ball at point X?

acceleration velocity

A constant constant
B constant increasing
C increasing constant
D increasing increasing

© UCLES 2016 0625/12/F/M/16

 3

3 The diagram shows the speed-time graph for a car.

speed

Y
X
0
0 time

Which area represents the distance travelled while the car is accelerating?

A X B X+Y C Y D Y–X

4 Which quantities are measured in the same unit?

A energy, power and work

B energy and power, but not work
C energy and work, but not power
D power and work, but not energy

5 Five identical bags of rice are balanced on a uniform beam by an object of mass 10 kg.

five bags
of rice 10 kg

pivot

Two more identical bags of rice are added to the other five. The average position of the bags on
the beam does not change.

What mass now balances the bags?

A 3.5 kg B 7.0 kg C 12 kg D 14 kg

© UCLES 2016 0625/12/F/M/16 [Turn over

 4

6 The diagram shows a cuboid block made from a metal of density 2.5 g / cm3.

2.0 cm 10 cm

2.0 cm

What is the mass of the block?

A 8.0 g B 16 g C 50 g D 100 g

7 The diagram shows an unbalanced rod. Two loads X and Y can be moved along the rod.

X Y
rod
movement movement
of rod of rod
pivot

The rod turns in a clockwise direction as shown.

Which action could make the rod balance?

A moving X to the left

B moving X to the right
C moving Y to the right
D moving the pivot to the left

© UCLES 2016 0625/12/F/M/16

 5

8 A box is being lifted by a fork-lift truck.

fork-lift truck box

The weight of the box is 3000 N.

The force exerted by the fork-lift truck on the box is 3500 N vertically upwards.

What is the resultant vertical force on the box?

A 500 N downwards
B 500 N upwards
C 6500 N downwards
D 6500 N upwards

9 The diagram shows a ball hanging on a string. The ball swings from point W to point Z and back
to point W.

ball

W Z
X Y

Which statement about the ball is correct?

A The kinetic energy of the ball is greatest at point W.

B The kinetic energy of the ball is greatest at point X.
C The kinetic energy of the ball is greatest at point Y.
D The kinetic energy of the ball is the same at all points of the swing.

© UCLES 2016 0625/12/F/M/16 [Turn over

 10

20 Two plastic cups are placed one inside the other. A small spacer keeps the two cups separated.

Hot water is poured into the inner cup and a lid is put on top, as shown.

lid

small spacer

small air gap

hot water

bench

Which statement is correct?

A The bench is heated by convection from the bottom of the outer cup.
B The lid reduces the energy lost by convection.
C There is no thermal conduction through the sides of either cup.
D Thermal radiation is prevented by the small air gap.

21 A water wave in a shallow tank passes through a gap in a barrier.

barrier

water
wave
gap

What happens to the speed and what happens to the wavelength of the wave as it passes
through the gap?

speed wavelength

A decreases decreases
B decreases remains constant
C remains constant decreases
D remains constant remains constant

© UCLES 2016 0625/12/F/M/16

 9

18 The diagram shows electricity cables being put up on a warm day. The cables are left loose
between the poles, as shown in the diagram.

Why are the cables left loose?

A They will contract on cold days.

B They will contract on very warm days.
C They will expand on cold days.
D They will expand on very warm days.

19 A cotton sheet is ironed with a hot electric iron.

How is energy transferred through the metal base of the iron to the sheet?

A by conduction only
B by convection only
C by radiation only
D by convection and radiation only

© UCLES 2016 0625/12/F/M/16 [Turn over

 7

13 Identical toy bricks are placed one on top of another to make a tower on a table.

bricks

tower of bricks

table

Which graph shows the relationship between the pressure P that the tower exerts on the table
and the weight W of the tower?

A B C D
P P P P

0 0 0 0
0 W 0 W 0 W 0 W

14 The table lists the melting points and the boiling points of four different substances.

Which substance is a liquid at 0 °C?

melting point / °C boiling point / °C

A –219 –183
B –7 58
C 98 890
D 1083 2582

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 6

10 A person in a factory has to lift a box on to a shelf.

high shelf

box
low shelf

Which action involves the person doing the least amount of work?

A lifting the box quickly to the high shelf

B lifting the box slowly to the high shelf
C lifting the box to the low shelf first then lifting it to the high shelf
D lifting the box to the low shelf instead of to the high shelf

11 Which is a non-renewable energy resource?

A coal
B solar
C tides
D wind

12 The diagram shows a simple mercury barometer.

Which labelled length is measured when finding atmospheric pressure?

mercury
B C D

© UCLES 2016 0625/12/F/M/16

 8

15 Air in a sealed syringe is slowly compressed by moving the piston. The temperature of the air
stays the same.

air

syringe piston

Which statement about the air is correct?

A The pressure of the air decreases because its molecules now travel more slowly.
B The pressure of the air decreases because the area of the syringe walls is now smaller.
C The pressure of the air increases because its molecules now hit the syringe walls more
frequently.
D The pressure of the air increases because its molecules now travel more quickly.

16 Which quantity gives the thermal capacity of a solid object?

A the energy lost by radiation from the object in 1.0 s

B the energy needed to melt the object

C the energy needed to raise the temperature of the object by 1.0 °C

D the total amount of thermal energy in the object

17 To mark a temperature scale on a thermometer, standard temperatures known as fixed points are
needed.

Which of these is a fixed point on the Celsius scale?

A room temperature
B the temperature inside a freezer
C the temperature of pure melting ice
D the temperature of pure warm water

© UCLES 2016 0625/12/F/M/16

 12

24 A ray of white light is incident on a glass prism.

ray of
white
light
prism

Which ray diagram shows the ray as it passes through the prism and emerges from the opposite
side?

A B
red violet
spectrum spectrum
violet red

C D

red violet
spectrum spectrum
violet red

25 A sound wave travels from a point X to another point Y.

X Y

Which diagram represents the movement of the air molecules, due to the sound wave, in the
region between X and Y?

A B C D

26 Sound wave P has a greater amplitude and a larger wavelength in air than sound wave Q.

How do the loudness and pitch of P compare with the loudness and pitch of Q?

A P is louder and higher in pitch than Q.

B P is louder and lower in pitch than Q.
C P is quieter and higher in pitch than Q.
D P is quieter and lower in pitch than Q.

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 11

22 Which is a unit of wavelength?

A hertz
B metre
C metre per second
D second

23 Which diagram correctly shows a ray of light reflected by a plane mirror?

A B

ray of 40° 50° ray of 50°

light light
50°

C D

ray of 40° ray of 40°

light light
40° 50°

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 13

27 In which pair are both materials magnetic?

A aluminium and copper

B copper and iron
C iron and steel
D steel and aluminium

28 The diagram shows the magnetic field around two bar magnets.

Which diagram shows the poles of the magnets?

A N S N S

B N S S N

C S N N S

D S N S N

29 Which produces an electromotive force (e.m.f.)?

A a battery
B a filament lamp
C a resistor
D a spring balance

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30 The table describes four different resistance wires. They are all made from the same metal.

Which wire has the smallest resistance?

length of diameter of
wire / m wire / mm

A 2.0 1.0
B 2.0 1.5
C 3.0 1.0
D 3.0 1.5

31 Four lamps are each labelled 240 V.

In which circuit do all four lamps have normal brightness?

A B

240 V 240 V

C D

240 V 240 V

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 15

32 The diagram shows a 40 Ω resistor and a 60 Ω resistor connected in parallel.

60 Ω

P Q
40 Ω

What is the total resistance between points P and Q?

A less than 40 Ω

B 50 Ω

C between 60 Ω and 100 Ω

D 100 Ω

33 The diagram shows a potential divider connected to two voltmeters P and Q.

V voltmeter P

V voltmeter Q

The resistance of the variable resistor is decreased.

Which row shows what happens to the reading on each voltmeter?

reading on reading on
voltmeter P voltmeter Q

A decreases decreases
B decreases increases
C increases decreases
D increases increases

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56
37 A nucleus of element X is represented as 26 X.

Which is an isotope of element X?

26 54 56 54
A 56 X B 26 X C 24 X D 28 X

38 The charge on a proton is e.

What is the charge on an electron and what is the charge on a neutron?

electron neutron

A e e
B e 0
C –e –e
D –e 0

39 A scientist carries out an experiment using a sealed source which emits β-particles. The range of
the β-particles in the air is about 30 cm.

Which precaution is the most effective to protect the scientist from the radiation?

A handling the source with long tongs

B keeping the temperature of the source low
C opening all windows in the laboratory
D washing his hands before leaving the laboratory

40 Which row describes the nature of α-particles and of γ-rays?

α-particles γ-rays

A helium nuclei electromagnetic radiation

B helium nuclei electrons
C protons electromagnetic radiation
D protons electrons

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 16

34 After some building work in a house, a bare (uninsulated) live wire is left protruding from a wall.

What is the greatest hazard?

A a fire
B a fuse blows
C an electric shock
D no current flows

35 A coil carries a current in a magnetic field. The coil experiences a turning effect.

Which device uses this effect?

A a d.c. motor
B an electromagnet
C a relay
D a transformer

36 A magnet is suspended from a spring so that it can move freely inside a stationary coil. The coil is
connected to a sensitive centre-zero galvanometer.

spring

moving magnet
N

S centre-zero
galvanometer
stationary coil

The magnet repeatedly moves slowly up and down.

What does the galvanometer show?

A a constantly changing reading

B a steady reading to the left
C a steady reading to the right
D a steady reading of zero

© UCLES 2016 0625/12/F/M/16

 Cambridge International Examinations
Cambridge International General Certificate of Secondary Education

PHYSICS 0625/12
Paper 1 Multiple Choice (Core) May/June 2017
45 minutes
Additional Materials: Multiple Choice Answer Sheet
Soft clean eraser
*2009621188*

Soft pencil (type B or HB recommended)

READ THESE INSTRUCTIONS FIRST

Write in soft pencil.

Do not use staples, paper clips, glue or correction fluid.
Write your name, Centre number and candidate number on the Answer Sheet in the spaces provided
unless this has been done for you.
DO NOT WRITE IN ANY BARCODES.

There are forty questions on this paper. Answer all questions. For each question there are four possible
answers A, B, C and D.
Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet.

Read the instructions on the Answer Sheet very carefully.

Each correct answer will score one mark. A mark will not be deducted for a wrong answer.
Any rough working should be done in this booklet.
Electronic calculators may be used.
Take the weight of 1.0 kg to be 10 N (acceleration of free fall = 10 m / s2).

The syllabus is approved for use in England, Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate.

This document consists of 20 printed pages.

IB17 06_0625_12/3RP
© UCLES 2017 [Turn over
 2

1 Which device is used to measure the time it takes for a 10 cm3 block of ice to melt in a laboratory
at room temperature?

A measuring cylinder
B ruler
C stopwatch
D thermometer

2 A student determines the average speed of a bubble rising through a liquid at constant speed.

When the student starts the stopwatch the bubble is at position P.

After 2.0 s the bubble is at position Q.

bubble

18 Q
19

20

21

22

23

24

25
P
26
cm
27
bubble

What is the speed of the bubble between P and Q?

A 3.2 cm / s B 3.7 cm / s C 6.4 cm / s D 7.4 cm / s

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 3

3 The speed-time graph represents a motorcycle journey.

In which part of the graph is the acceleration equal to zero?

40
speed
m/s C
30
B
20
D
10
A

0
0 10 20 30 40 50 60 70 80 90 100
time / s

4 Which expression is used to find gravitational field strength g?

A mass × density

B mass ÷ weight

C weight × mass

D weight ÷ mass

5 A block of ice is removed from a freezer. Some of the ice melts to produce water. Some of the
water that is produced evaporates.

The original mass of the ice is p. The mass of the ice that has not yet melted is q. The mass of
the water is r. The mass of the water vapour is s.

The diagram shows these changes.

before melting after melting and evaporation

ice ice water water vapour

mass p mass q mass r mass s

Which equation gives the relationship between p, q, r and s?

A p=q+r
B p=q+r+s
C p=q+r–s
D p=q+s

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6 The masses of a measuring cylinder before and after pouring some liquid into it are shown in the
diagram.

cm3 cm3
200 200

100 100
liquid

mass = 80 g mass = 180 g

What is the density of the liquid?

A 100 g / cm3 B 100 g / cm3 C 180 g / cm3 D 180 g / cm3

120 140 120 140

7 A car travels forwards along a straight horizontal road. Only the horizontal forces acting on it are
shown.

air resistance
and friction
driving force

The length of each arrow represents the size of each force.

How do these forces affect the motion of the car?

A The car moves at constant speed.

B The car moves backwards.
C The car slows down.
D The car’s forward speed increases.

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 5

8 The centre of a uniform metre rule rests on a pivot. A load of weight 3.0 N is placed at the 70 cm
mark.

A force F acts upwards at the 80 cm mark. The rule is in equilibrium.

0 cm 50 cm 70 cm 100 cm

80 cm
rule
pivot
3.0 N

What is the magnitude of F ?

A 2.0 N B 2.6 N C 3.0 N D 4.5 N

9 An energy resource is used to generate electrical energy.

Which energy resource uses a transfer of gravitational potential energy to generate this electrical
energy?

A geothermal
B hydroelectric
C solar
D wind

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 7

11 The diagram shows a conical vessel full of water.

The pressure at point X due to the water is p. A point Q is a distance h above point X.

water

Q
h
X

Which graph shows how the pressure due to the water at Q varies with distance h?

A B
pressure p pressure p

0 0
0 distance h 0 distance h

C D
pressure p pressure p

0 0
0 distance h 0 distance h

© UCLES 2017 0625/12/M/J/17 [Turn over

 6

10 The diagrams show athletes training by stretching springs.

Each spring has the same stiffness.

Which athlete does the most work?

A B

one spring stretched one spring stretched

by 0.60 m by 0.80 m

C D

two springs stretched two springs stretched

by 0.60 m by 0.80 m

© UCLES 2017 0625/12/M/J/17

 10

16 Equal masses of two different liquids are put into identical beakers.

Liquid 1 is heated for 100 s and liquid 2 is heated for 200 s by heaters of the same power.

Each liquid has the same rise in temperature.

different liquids
of same mass
liquid 1 liquid 2

heating time = 100 s heating time = 200 s

Which statement is correct?

A Each beaker of liquid has the same thermal capacity.

B Each beaker of liquid receives the same energy.
C Liquid 1 receives more energy than liquid 2.
D The thermal capacity of liquid 1 is less than the thermal capacity of liquid 2.

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 9

13 Brownian motion is observed when using a microscope to look at smoke particles in air.

What causes the smoke particles to move at random?

A Smoke particles are hit by air molecules.

B Smoke particles are moved by convection currents in the air.
C Smoke particles have different weights and fall at different speeds.
D Smoke particles hit the walls of the container.

14 Which change is evaporation?

solid
D A

liquid liquid

B
C
gas

15 A glass bottle has a metal cap. The cap fits very tightly and is difficult to remove.

The cap and the neck of the bottle are dipped in a bowl of hot water. The cap can be removed
more easily.

What happens to allow the cap to be removed more easily from the bottle?

A The cap contracts.

B The cap expands.
C The glass bottle contracts.
D The glass bottle expands.

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 11

17 A copper bar and a wooden bar are joined. A piece of paper is wrapped tightly around the join.

The bar is heated strongly at the centre for a short time, and the paper goes brown on one side
only.

wood paper copper

heat

Which side goes brown, and what does this show about wood and copper?

brown side wood copper

A copper conductor insulator

B copper insulator conductor
C wood conductor insulator
D wood insulator conductor

18 A glass of water is taken out of a refrigerator. Several ice cubes are put into the glass of water.
The glass is then left in the room for several hours.

The graph shows how the temperature of the water in the glass varies from the time it is taken
out of the refrigerator.

temperature

0 time

What does the temperature marked X represent?

A boiling point of water

B melting point of ice
C room temperature
D temperature inside refrigerator

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23 The diagrams show four sources of waves.

Which source produces longitudinal waves?

A B C D

stick pushed up radio loudspeaker lamp

and down in water transmitter

24 The table shows different types of wave in the electromagnetic spectrum.

radio micro- infra-red visible ultraviolet gamma

X-rays
waves waves waves light waves rays

Where do all the waves travel at the same speed?

A in a vacuum
B in diamond
C in glass
D in water

25 A fire alarm is not loud enough and the pitch is too low. An engineer adjusts the alarm so that it
produces a louder note of a higher pitch.

What effect does this have on the amplitude and on the frequency of the sound?

amplitude frequency

A larger greater
B larger smaller
C smaller greater
D smaller smaller

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 15

26 What is wrong with this labelled diagram of a permanent magnet?

iron disc

N S

A The cross-section should be rectangular.

B The length should be greater than the diameter.
C The magnet should be made of steel.
D The N-pole and the S-pole should be reversed.

27 Which statement about magnetism is correct?

A An unmagnetised iron bar becomes magnetised when it is placed near a magnet.

B An unmagnetised steel bar can be magnetised by passing a current through it.
C Steel is used as the core of an electromagnet.
D When an iron bar has been magnetised, it is difficult to demagnetise it.

28 A student tests the electrical conduction of four materials.

aluminium
iron
plastic
silver

Which materials conduct electricity?

A aluminium, iron and silver only

B aluminium and silver only
C iron, silver and plastic only
D plastic only

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19 A hollow aluminium cube is filled with very hot water.

Side X of the cube is opposite side Y of the cube. One of these two sides is black and one is
white.

A student holds the back of one hand 5 cm from side X, and then immediately holds the back of
the other hand 5 cm from side Y.

aluminium cube

side X side Y

5 cm 5 cm

very hot water

The hand held near side Y feels warmer than the hand held near side X.

Which row identifies the black side and correctly compares the rate of emission of thermal
radiation from each side?

rate of emission
black side
of thermal radiation

A X greater for X
B X the same for X and Y
C Y greater for Y
D Y the same for X and Y

20 What causes the change in direction when light travels from air into glass?

A The amplitude of the light changes.

B The colour of the light changes.
C The frequency of the light changes.
D The speed of the light changes.

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 16

29 The circuit diagram shows three resistors connected in series across a 6.0 V supply.

6.0 V

3.0 Ω 4.0 Ω 5.0 Ω

What is the potential difference (p.d.) across the 4.0 Ω resistor?

A 0.67 V B 1.5 V C 2.0 V D 6.0 V

30 A thermistor is connected in series with a sensitive ammeter and a battery.

thermistor

Which change will give a larger ammeter reading?

A adding another thermistor in series

B cooling the thermistor
C heating the thermistor
D reducing the number of cells in the battery

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 17

31 Three ammeters measure the currents in different parts of the circuit shown. The diagram
indicates the reading on the ammeters.

18 Ω
A
3.0 A
A
2.0 A 6Ω
A
1.5 A

How do we know that at least one of the ammeters must be faulty?

A All three ammeters must read the same value.

B All the current takes the easier path through the 6 Ω resistor.
C The current from the battery must be equal to the sum of the currents in the two resistors.
D The current in the two parallel resistors must be the same.

32 A student connects a variable potential divider (potentiometer) circuit.

R
T V

12 V

What happens to the reading on the voltmeter as the sliding terminal T is moved from R to S?

A It decreases from 12 V to 0 V.
B It increases from 0 V to 12 V.
C It remains at 0 V.
D It remains at 12 V.

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33 The diagram shows an electric circuit.

20 Ω 0.40 A

10 Ω

What is the potential difference (p.d.) across the LDR?

A 4.0 V B 8.0 V C 25 V D 50 V

34 A circuit-breaker is designed to protect a circuit which usually carries a current of 2 A.

The time taken to break the circuit depends on the current, as shown in the graph.

0.16
time taken
0.14
to break the
circuit / s 0.12
0.10
0.08
0.06
0.04
0.02
0
0 2 4 6 8 10 12 14 16 18 20

current / A

What happens when the current in the circuit is 2 A and what happens when the current is 18 A?

when the current is 2 A when the current is 18 A

A the circuit breaks in less than 0.01 s the circuit breaks in less than 0.01 s
B the circuit breaks in less than 0.01 s the circuit does not break
C the circuit does not break the circuit breaks in less than 0.01 s
D the circuit does not break the circuit does not break

© UCLES 2017 0625/12/M/J/17

 19

35 What is the purpose of a relay?

A to change a large voltage into a small voltage

B to change a small voltage into a large voltage
C to use a large current to switch on a small current
D to use a small current to switch on a large current

36 A coil of four loops of wire is placed in a magnetic field. When there is a current, the coil
experiences a turning effect.

Some extra loops of wire are wound on the coil but the current is unchanged.

How does this affect the turning effect?

A It is unchanged.
B Its direction changes.
C It decreases.
D It increases.

37 Which particle has a negative charge?

A an alpha particle
B an electron
C a neutron
D a proton

38 The diagram represents the nucleus of an atom. The charged particles are shown.

+ +

Which row gives the proton number and the nucleon number for this nucleus?

proton nucleon
number number

A 3 4
B 3 7
C 4 3
D 4 7

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 20

39 A sample of radioactive isotope is decaying.

The nuclei of which atoms will decay first?

A It is impossible to know because radioactive decay is random.

B It is impossible to know unless the age of the material is known.
C The atoms near the centre will decay first because they are surrounded by more atoms.
D The atoms near the surface will decay first because the radiation can escape more easily.

40 The half-life of a radioactive isotope is 4.0 years.

A sample of this material contains 24 million radioactive nuclei.

How many of these radioactive nuclei remain undecayed after 12 years?

A 0.5 million
B 2.0 million
C 3.0 million
D 6.0 million

Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every
reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the
publisher will be pleased to make amends at the earliest possible opportunity.

To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge
International Examinations Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at
www.cie.org.uk after the live examination series.

Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of Cambridge Local
Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.

© UCLES 2017 0625/12/M/J/17