KINGSFOLD INTERNATIONAL ACADEMY

Raising Ingenious Leaders

2024/2025 ACADEMIC SESSION

VICTORY TERM (THIRD TERM)

SUBJECT: PHYSICS CLASS YEAR 10

1
INSTRUCTIONS: ANSWER ALL QUESTIONS DURATION : 2 HOUR
4

Objective Questions (Choose the correct option A – D)

1. Which of the following is the unit of D. Mass

electric current? 6. Ohm’s law states that
A. Volt A. V = IR for all types of conductors
B. Ampere B. V is inversely proportional to I
C. Ohm C. V is directly proportional to I at
D. Coulomb constant temperature
2. A current of 3 A flows through a D. I is constant irrespective of voltage
resistor of resistance 4 Ω. What is the 7. What is the cost of using a 1000 W
potential difference across it? electric heater for 5 hours if electricity
A. 12 V is sold at ₦40 per kWh?
B. 7 V A. ₦100
C. 0.75 V B. ₦200
D. 1.33 V C. ₦150
3. The electromotive force (e.m.f) of a D. ₦50
cell is defined as 8. In the buying and selling of
A. The energy used up in the circuit electricity, what is the unit used by
B. The rate at which current flows power companies to charge
C. The total energy supplied per consumers?
coulomb of charge A. Volt-hour
D. The product of resistance and B. Kilojoule
charge C. Kilowatt-hour
4. A battery of e.m.f 12 V and internal D. Coulomb
resistance 2 Ω is connected to a 4 Ω 9. The relationship between the
resistor. The current in the circuit is electromotive force (e.m.f) of a
A. 2 A battery and its internal resistance is
B. 3 A A. Directly proportional
C. 1 A B. Inversely proportional
D. 4 A C. Not related
5. Which of these factors does NOT D. Equal at all times
affect resistance of a wire? 10. Which of the following quantities is a
A. Length measure of elasticity?
B. Cross-sectional area A. Pressure
C. Temperature B. Young’s modulus
 C. Strain Ω resistor. What is the current in the
D. Hooke’s law circuit?
11. If a circuit has an internal resistance A. 0.5 A
of 1.5 Ω and an external resistance of B. 1 A
6 Ω, the total resistance of the circuit C. 2 A
is D. 3 A
A. 6.5 Ω 19. Which of the following best describes
B. 7.5 Ω the molecular theory of matter?
C. 8.5 Ω A. Matter is continuous
D. 1.5 Ω B. Matter is composed of large
12. A 9 V battery is connected to a 3 Ω particles
resistor. The current in the circuit is C. Matter consists of small discrete
A. 3 A particles in constant motion
B. 0.3 A D. Matter is made only of air and
C. 9 A water
D. 0.5 A 20. The force that holds molecules of the
13. Which of these liquids has the highest same kind together is called
surface tension? A. Adhesive force
A. Water B. Cohesive force
B. Mercury C. Electrostatic force
C. Alcohol D. Magnetic force
D. Olive oil 21. Which of the following best
14. What happens to the surface tension distinguishes crystalline from
of a liquid as temperature increases? amorphous substances?
A. It increases A. Colour
B. It decreases B. Hardness
C. It remains constant C. Definite melting point
D. It becomes zero D. Mass
15. What happens to the total resistance 22. Which of the following best
in a series circuit as more resistors are represents the flow of current in a
added? circuit?
A. It decreases A. From negative to positive
B. It remains constant B. From positive to negative
C. It increases C. From high to low resistance
D. It fluctuates D. From low to high resistance
16. In a parallel circuit, the total 23. In a circuit with a 10 Ω resistor and a
resistance is 2 A current, the potential difference
A. The sum of the individual across the resistor is
resistances A. 5 V
B. Less than the smallest individual B. 10 V
resistance C. 20 V
C. The product of the individual D. 30 V
resistances 24. Hooke’s law is mathematically
D. Equal to the largest individual expressed as
resistance A. F = ma
17. The relationship between current (I), B. F = kx
resistance (R), and potential C. F = 1/x
difference (V) is given by D. F = k/x
A. I = VR 25. If a spring of force constant 100 N/m
B. I = V/R is stretched by 0.05 m, the force
C. I = R/V applied is
D. I = V^2/R A. 0.5 N
18. In a circuit, a 12 V battery is B. 2.0 N
connected in series with a 4 Ω and a 6 C. 5.0 N
D. 10.0 N
 Use the circuit diagram below to B. 4 A
answer question 26 and 27 C. 2 A
D. 1 A
32. Which of these explains the reason
why small insects can walk on water?
A. Capillarity
B. Adhesion
C. Surface tension
D. Viscosity
33. A liquid with high viscosity will
26. The current passing through the 6 Ω
A. Flow very fast
resistor is 1.5 A. Calculate the current
B. Evaporate quickly
in the 3 Ω resistor.
C. Flow slowly
A. 1.20 A
D. Be easily compressible
B. 0.90 A
34. Surface tension arises due to
C. 0.75 A
A. Gravity
D. 0.60 A
B. Differences in pressure
27. Calculate the terminal potential
C. Unbalanced molecular attraction
difference of the battery in the
D. Electromagnetic force
diagram.
35. Which of the following instruments is
A. 7.20 V
used to measure viscosity?
B. 7.50 V
A. Manometer
C. 10.80 V
B. Viscosimeter
D. 11.25 V
C. Viscometer
28. Which of the following properties is
D. Hydrometer
common to both solids and liquids?
36. As temperature increases, the
A. Definite shape
viscosity of a liquid:
B. Ability to flow
A. Increases
C. Definite volume
B. Remains constant
D. Compressibility
C. Decreases
29. The arrangement of particles in a
D. Becomes zero
crystalline solid is
37. Find the work done in moving a 2C
A. Random
charge between two points X and Y in
B. Regular
an electric field if the potential
C. Irregular
difference is 100 Volts.
D. Disordered
A. 50 J
30. Which of the following object is not a
B. 100 J
conductor of electricity ?
C. 200 J
A. The earth
D. 400 J
B. Human body
38. Which of the following will require
C. Iron rod
the smallest fuse rating for its
D. Dry wood
protection ?
A. 60 W, 240 V
B. 60 W, 40 V
C. 40 W, 12 V
D. 40 W, 5 V
39. The force that acts at the surface of a
liquid and causes it to behave like a
stretched elastic membrane is called:
31. A. Surface tension
A circuit is set up as shown in the B. Viscosity
diagram above. When the key is C. Adhesion
closed, the reading on the ammeter D. Cohesion
will be
A. 6 A
40. A wire is stretched to twice its 49. Which of the following fluids has the
original length. What happens to the highest viscosity?
strain? A. Water
A. It halves B. Honey
B. It doubles C. Air
C. It remains the same D. Petrol
D. It becomes infinite 50. The force responsible for the rise of
41. A spring stretches by 2 cm when a 4 water in a capillary tube is:
N force is applied. Its force constant A. Viscosity
is: A. 2 N/m B. Cohesion
B. 0.5 N/m C. Adhesion
C. 200 N/m D. Gravity
D. 20 N/m
42. Which of the following correctly
defines strain?
A. Extension per unit length
B. Force per unit area
C. Energy per unit volume
D. Mass per unit length
43. The point beyond which a material
will not return to its original shape is
called:
A. Elastic limit
B. Breaking point
C. Limit of proportionality
D. Yield point
44. In a capillary tube, the liquid rises
higher when:
A. The liquid is less viscous
B. The liquid has higher surface
tension
C. The liquid has a lower boiling
point
D. The liquid has more molecules
45. Which of the following describes how
a liquid behaves when subjected to
surface tension?
A. It spreads evenly across a surface
B. It contracts to minimize surface
area
C. It evaporates quickly
D. It increases in volume
46. The viscosity of a fluid is affected by:
A. Temperature
B. Pressure
C. Surface area
D. None of the above
47. The ratio of stress to strain is known
as:
A. Modulus of elasticity
B. Force constant
C. Tensile force
D. Extension
48. What is the unit of resistance? A.
Ampere B. Volt C. Ohm D. Watt
Section B: Theory Questions In the circuit above, the ammeter reads a
current of 3A, when R is 5Ω and 6A when R
Answer any (3) questions is 2 Ω. Determine the value of X.
Each question carries equal marks. D. A landlord has six 60W electric bulbs, five
40W bulb and two 50W bulb in his house. If
Question 1
he has all the points on for 6 hours daily and if
A. Define electromotive force (e.m.f) and NEPA charges 4 kobo per unit, calculate his
internal resistance of a cell. bill for 30 days.

B. Differentiate between series and parallel Question 3:

connection of resistors.
A. Explain the rise of water in a glass capillary
C. A series circuit consisting of three resistors: tube using the kinetic theory.
one of 10 ohms, one of 15 ohms, and another
B. State any three properties of matter which
of 30 ohms. If the voltage source of negligible
are common to all substances.
internal resistance provides voltage 110V
across the resistors. Draw the circuit diagram C. What is diffusion. Describe an experiment
and Calculate; to show that matter is made up of particles
using the diffusion of gases.
(i) total resistance
D. Explain the terms, viscocity, terminal
(ii) current in the circuit
velocity and sketch the graph of a velocity
(iii) current in each resistor against of fall of the steel ball and explain its
nature.
(iv) p.d across each resistor
Question 4:
D. Sketch a simple electric circuit containing a
battery, ammeter, voltmeter, and resistor in A. Define:
series.
(i) Elasticity
Question 2:
(ii) Young’s modulus
A. Define electrical resistance. What factors
(iii) Force constant
affect the resistance of a conductor
B. A force of 40N is applied at the end of wire
B. State Ohm’s law and write its mathematical
4m long and it produces an extension of
expression
0.24mm. If the diameter of the wire is
2.00mm, calculate the (i) stress of the wire (ii)
strain of the wire

C. State Hooke’s law of elasticity

D. A spiral spring of natural length 20.00cm

has a scale pan hanging freely in its lower end.
C. When an object of mass 40g is placed in the
pan, its length becomes 21.80cm. When
another object of mass 60g is placed in the
pan, the length becomes 22.05cm. Calculate
the mass of the scale pan. [g = 10 m s−2 ¿
 KINGSFOLD INTERNATIONAL ACADEMY

Raising Ingenious Leaders

2024/2025 ACADEMIC SESSION

VICTORY TERM (THIRD TERM)

SUBJECT: PHYSICS CLASS YEAR 11

1
INSTRUCTIONS: ANSWER ALL QUESTIONS DURATION : 2 HOUR
2

Objective Questions (Choose the correct option A – D)

1. The image formed by a plane mirror is: C. Reflection

A. Real and inverted D. Change in frequency

B. Virtual and laterally inverted 5. If the refractive index of glass is 1.5, what is
the speed of light in glass? (Speed of light in
C. Real and upright air = 3 × 10⁸ m/s)
D. Virtual and magnified A. 2 × 10⁸ m/s
2. A ray of light is incident at 30° on a plane B. 4.5 × 10⁸ m/s
mirror. What is the angle between the incident
ray and the reflected ray? C. 1.5 × 10⁸ m/s

A. 30° D. 3.5 × 10⁸ m/s

B. 60° 6. A concave lens always forms:

C. 90° A. Real, inverted image

D. 120° B. Virtual, upright and diminished image

3. Which of these best explains why a pencil C. Virtual and magnified image
appears bent in water?
D. Real and magnified image
A. Diffraction
7. The path of light is best described by:
B. Reflection
A. Curved line
C. Dispersion
B. Wavy path
D. Refraction
C. Straight line
4. In refraction, the bending of light is due to:
D. Circular path
A. Change in wavelength
8. What happens to white light passing
B. Change in speed through a triangular prism?
A. Reflected 14. Refraction of light in a prism occurs at:

B. Polarized A. One face

C. Dispersed into spectrum B. Two faces

D. Diffracted C. Three faces

9. Which of the following optical instruments D. The base only

produces a real, inverted image?
15. A lens which is thicker at the center than at
A. Simple microscope the edges is:

B. Plane mirror A. Concave

C. Camera B. Convex

D. Magnifying lens C. Plane

10. The part of the eye that corresponds to the D. Cylindrical

camera lens is the:
16. The angle between the incident ray and the
A. Iris reflected ray is called:

B. Retina A. Angle of incidence

C. Cornea B. Angle of deviation

D. Eye lens C. Angle of emergence

11. Light travels fastest in: D. Angle of reflection

A. Glass 17. Which lens is used in a magnifying glass?

B. Water A. Convex

C. Air B. Concave

D. Vacuum C. Cylindrical

12. The splitting of white light into seven D. Plane

colors is called:
18. One of these instruments forms an inverted
A. Reflection image on a screen:

B. Refraction A. Periscope

C. Dispersion B. Camera

D. Diffraction C. Plane mirror

13. A prism disperses light because of: D. Simple microscope

A. Its transparency 19. Which property of light is responsible for

the working of optical fibres?
B. Refraction
A. Diffraction
C. Its shape
B. Reflection
D. Its density
C. Refraction
D. Total internal reflection C. 90°

20. A camera and the human eye both contain: D. 180°

A. Shutter 26. If a ray passes through the optical center of

a lens, it:
B. Retina
A. Refracts
C. Convex lens
B. Reflects
D. Diaphragm
C. Deviates
21. The type of lens that converges rays of
light is called: D. Goes straight

A. Convex 27. The image formed by a convex lens can

be:
B. Concave
A. Only real
C. Cylindrical
B. Only virtual
D. Plane
C. Both real and virtual
22. Which part of the human eye controls the
amount of light entering it? D. Neither

A. Iris 28. The magnification of an object 4 cm high

which produces an image 12 cm high is:
B. Cornea
A. 1
C. Lens
B. 2
D. Retina
C. 3
23. The unit of power of a lens is:
D. 4
A. Dioptre
29. A lens forms a virtual image of an object
B. Newton placed 10 cm from it. The lens is:
C. Ohm A. Concave
D. Watt B. Convex
24. Total internal reflection occurs when light C. Cylindrical
travels from:
D. Plane
A. Air to glass
30. A ray passing through a prism deviates
B. Glass to air because of:
C. Vacuum to air A. Reflection
D. Water to glass B. Refraction
25. The critical angle is defined as the angle of C. Diffraction
incidence for which the angle of refraction is:
D. Polarization
A. 0°
31. Which lens is used in the human eye?
B. 45°
A. Plane D. Focal point

B. Cylindrical 38. What part of the camera corresponds to the

retina of the eye?
C. Concave
A. Film
D. Convex
B. Lens
32. Light enters a denser medium from a rarer
medium. Its speed: C. Diaphragm

A. Increases D. Shutter

B. Remains constant 39. Which wave property allows light to form

shadows?
C. Decreases
A. Reflection
D. Becomes zero
B. Rectilinear propagation
33. The focal length of a lens is 10 cm. Its
power is: A. 5 D B. 10 D C. 15 D D. 20 D C. Diffraction

34. Which device uses total internal reflection? D. Dispersion

A. Microscope 40. When light bends around an obstacle, the

phenomenon is called:
B. Periscope
A. Refraction
C. Binoculars
B. Dispersion
D. Optical fiber
C. Diffraction
35. Which of these instruments uses a pair of
lenses to magnify objects? D. Interference

A. Camera 41. A light ray that hits the boundary at 90° to

the surface is:
B. Microscope
A. Refracted
C. Telescope
B. Reflected
D. Projector
C. Undeviated
36. A real image can be formed on a:
D. Dispersed
A. Mirror
42. The convex lens in a projector produces:
B. Screen
A. Real, diminished image
C. Retina
B. Real, magnified image
D. Water surface
C. Virtual, magnified image
37. The central part of a lens where no
refraction occurs is called: D. Virtual, diminished image

A. Optical axis 43. The human eye focuses light using:

B. Principal axis A. Iris

C. Optical center B. Retina

C. Lens C. Lens

D. Cornea D. Cornea

44. What corrects short-sightedness? 50. The optical instrument used to view distant
objects clearly is a:
A. Plane lens
A. Microscope
B. Cylindrical lens
B. Camera
C. Concave lens
C. Projector
D. Convex lens
D. Telescope
45. Power of a lens is the reciprocal of its:

A. Focal length (in meters)

B. Radius

C. Diameter

D. Refractive index

46. In a pinhole camera, the image is:

A. Upright and real

B. Inverted and virtual

C. Inverted and real

D. Upright and virtual

47. Light travels in a straight line due to:

A. Refraction

B. Reflection

C. Its nature as a wave

D. Rectilinear propagation

48. Which part of the eye is responsible for

focusing light?

A. Pupil

B. Lens

C. Retina

D. Iris

49. The part of the eye that detects light is the:

A. Retina

B. Iris
Section B: Theory Questions

PART A
Answer any (3) questions angle of refraction is 40°, calculate the
refractive index of water.
Each question carries equal marks
Question 2:
1. Explain plain polarization of light
2. State two types of waves, apart A. Define the following terms as applied
from light that can be plane to a convex mirror: (i) principal focus (ii)
polarized. (b) State two pole (iii) radius of a curvature
applications of plane polarized
light B. State one advantage and one
3. The absolute refractive indices of disadvantage of using a convex mirror as a
3 4 driving mirror.
glass and water are and
2 3 C. Draw a clearly labeled diagram to
respectively. Calculate the illustrate how two converging lenses may
refractive index at the interface be arranged to form a compound
when a ray travels from water to microscope.
glass
4. An object is placed in front of a D. An object 2.5mm long is viewed
converging lens of focal length through a converging lens of focal length
20cm. The image is virtual and a 10.0cm held close to the eye. A magnified
has a magnification 0f 2. Calculate image of the object is formed 30.0cm from
the distance of the object from the the lens. Calculate the: (i) distance of the
lens. object from the lens (ii) size of the image
5. Distinguish between (i) dispersion (iii) power of the lens
(ii) refraction and deviation
Question 3:
PART B A. Explain what is meant by pure
Answer any (3) questions spectrum of light

Each question carries equal marks B. Draw a ray diagram to illustrate how a
converging lens is used to produce a
Question 1: virtual image of an object.

A. What is meant by: (i) critical angle (ii) C. Name the primary colours of light. (ii)
total internal reflection . Match each primary colour to its
corresponding complementary colour.
B. Under what conditions does total
internal reflection occur ? (ii) Describe one D. A ray passes symmetrically through a
phenomenon of total internal reflection in glass prism of angle 600 and refractive of
nature the glass is 1.5. Calculate the angle of: (i)
incidence (ii) minimum deviation
C. Define Eclipse (ii) Draw a well labeled
diagram of solar eclipse Question 4:
D. With the aid of a diagram, describe how A. Draw a labelled diagram of the vertical
light is refracted through a rectangular section of the eye.
glass block (ii) Light passes from air into
water at an angle of incidence 60°. If the
B. Compare and contrast the structure and
mode of operation of the human eye and
the camera.
C. Name four optical instruments that use
lenses