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9 Science Term 1

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0% found this document useful (0 votes)
64 views12 pages

9 Science Term 1

Uploaded by

vegasharry3
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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The Juniors’ college

2021-2022
Class 09
Science

Maximum Marks: 40
Time Allowed: 90 minutes

General Instructions:

1. The Question Paper contains three sections.


2. Section A has 24 questions. Attempt any 20 questions.
3. Section B has 24 questions. Attempt any 20 questions.
4. Section C has 12 questions. Attempt any 10 questions.
5. All questions carry equal marks.
6. There is no negative marking.

Section A
1. Which one of the following will result in the formation of a mixture?
a. Breaking of ice cubes into small pieces
b. Adding sodium metal to water
c. Agitating a detergent with water in a washing machine
d. Crushing of a marble tile into small particles
2. Flexibility in plants is due to
a. parenchyma
b. chlorenchyma
c. collenchyma
d. sclerenchyma
3. The cell appear elongated, tapering at ends as observed under a microscope. It
is a. sclerenchyma fibre
b. striped muscle
c. parenchyma
d. nerve cell
4. A ball is thrown up with a velocity of 20 ms-1. What is the time of flight, neglecting air
resistance? a. 8 sec
b. 1 sec
c. 2 sec
d. 4 sec
5. According to the third law of motion, action and reaction
a. act on either body at normal to each other
b. always act on different bodies in opposite directions
c. have same magnitude and direction
d. always act on the same body
6. What is the order of methods applied to separate the components of a mixture of salt, sand,
and ammonium chloride?
a. Sublimation, dissolving in water, filtration and evaporation
b. Dissolving in water, evaporation, and sublimation
c. Moving a magnet, dissolving in water and sublimation
d. Dissolving in water, filtration, evaporation, and sublimation
7. Match the following with the correct response:
(a) Self-replicating organelle (i) Neuron

(b) The longest cell of the human body (ii) Chromatin

(c) Coloured Plastid (iii) Chromoplast

(d) The Threadlike structure inside the nucleus (iv) Mitochondria

a. (a) - (iii), (b) - (ii), (c) - (iv), (d) - (i)


b. (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii)
c. (a) - (i), (b) - (iii), (c) - (ii), (d) - (iv)
d. (a) - (iv), (b) - (i), (c) - (iii), (d) - (ii)
8. Name the tissue responsible for the movement of our body.
a. Epithelial tissue
b. Connective tissue
c. Nervous tissue
d. Muscular tissue
9. A body is said to be in rest when:
a. Its position doesn’t change with time with respect to the observer.
b. It's position changes with time w.r.t observer.
c. The body moves in uniform motion, w.r.t observer.
d. None of these.
10. Match the following with the correct response:
(a) Inertia (i) Necessary evil

(b) Friction (ii) Rate of change of momentum

(c) Momentum (iii) Product of mass and velocity

(d) Force (iv) The tendency to do nothing

a. (a) - (ii), (b) - (iv),(c) - (i), (d) - (iii)


b. (a) - (iii), (b) - (ii),(c) - (iv), (d) - (i)
c. (a) - (i), (b) - (iii),(c) - (ii), (d) - (iv)
d. (a) - (iv), (b) - (i),(c) - (iii), (d) - (ii)
11. Substance 'X' was added to a test tube containing water and grounded arhar dal to test the presence of
metanil yellow. The colour of solution changed to pink. Identify 'X'
a. H2CO3
b. NaOH
c. HCl
d. H2O
12. The functional units of the Golgi apparatus are:
a. cisternae
b. vacuoles
c. vesicles
d. cytoplasm
13. Match the following with the correct response:
(a) Aerenchyma (i) Permanent tissue

(b) Parenchyma (ii) Thin-walled packing cells

(c) Chlorenchyma (iii) Buoyancy

(d) Cork (iv) Photosynthesis

a. (a) - (i), (b) - (iii), (c) - (ii), (d) - (iv)


b. (a) - (iii), (b) - (ii), (c) - (iv), (d) - (i)
c. (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii)
d. (a) - (iv), (b) - (i), (c) - (iii), (d) - (ii)
14. The SI unit of force is:
a. Newton
b. Newton per second
c. Newton per square metre
d. Newton metre
15. The unit of momentum can be expressed as
a. N/s
b. N - s
c. kg s2/m
d. kg m/s2
16. Add dil. HCl to (i) mixture of Fe and sulphur (ii) iron sulphide and choose the correct
observation:
a. Mixture of iron and sulphur reacts with HCl to give H2S gas
b. FeS does not react with HCl
c. FeS reacts with HCl to give H2gas
d. Mixture of iron and sulphur reacts with HCl to give H2gas
17. The proteins and lipids, essential for building the cell membrane, are manufactured by
a. Mitochondria
b. Golgi apparatus
c. Rough endoplasmic reticulum
d. Plasma membrane
18. Meristematic tissues in plants are
a. localized and dividing cells
b. localized and permanent
c. not limited to certain regions
d. growing in volume
19. A car accelerates uniformly from 18 km/h to 36 km/h in 5 minutes. The acceleration
is
a. 5 ms-1
b. 1 ms-2
c. 1 km/s2
d. 216 ms-2
20. Action reaction forces act:
a. on the same body
b. on different bodies
c. in the same direction
d. along different bodies
21. Which of the following has the smell of rotten egg?
a. Hydrogen Sulphide
b. Calcium Sulphide
c. Copper Sulphide
d. Iron Sulphide
22. Identify the correct statement:
A. The double membrane is present in the nucleus.
B. A liver cell carries about 500-1000 mitochondria.
C. Wood contains the largest amount of cellulose.
D. All the statements are correct.
a. (A)
b. (D)
c. (C)
d. (B)
23. Primary growth in plants occurs by:
A. Apical meristem
B. Intercalary meristem
C. Lateral meristem
D. Vertical meristem
a. All of these
b. (b) and (c) are correct
c. (a) and (b) are correct
d. (a), (b) and (c) are correct
24. Which of the statement is true?
Statement A: A curved line in a speed-time graph means non-uniform motion.
Statement B: A curved line in a velocity-time graph means uniform
acceleration.
a. Statement A is false, B is true
b. Both the statement A and B are true
c. Neither statement A nor Statement B is true.
d. Statement A is true, B is false
Section B
25. The correct statement about the object moving along a straight path with an accelerated motion
is A. Its velocity keeps changing
B. Its speed keeps changing
C. A force is always acting on it
D. Its mass keeps on changing
a. B, C and D
b. A, B and C
c. A, B and D
d. All of these
26. Match the following with correct response:
(1) Living membrane surrounding cell (A) Stroma

(2) Single membrane surrounding vacuole (B) Plasma membrane

(3) Ground material of chloroplast (C) Cristae

(4) Fold of inner membrane in mitochondria (D) Tonoplast

a. 1-B, 2-D, 3-A, 4-C


b. 1-D, 2-A, 3-C, 4-B
c. 1-C, 2-B, 3-D, 4-A
d. 1-A, 2-C, 3-B, 4-D
27. The substance found in the cell wall of cork or bark that makes it impervious to water
is a. cutin
b. lignin
c. suberin
d. lipids
28. The function of the upper and lower layer of cells in leaves is/are
A. Protect the inner parts
B. Synthesize food
C. Regulate the water content
D. Exchange the gases
a. C and D
b. All of these
c. B and C
d. A, C and D
29. The outermost layer of the human cheek cell is:
a. Cell wall
b. Nuclear membrane
c. Cytoplasm
d. Plasma membrane
30. Which of the following is an example of uniform motion?
A. The motion of the car in a busy road
B. The motion of a satellite around the planet
C. The motion of the moon around the earth
D. The motion of any particle on the arm of a clock.
a. A, B and D
b. A, C and D
c. All of these
d. B, C, and D
31. Assertion (A): When astronauts throw something in space, that object would continue moving in
the same direction and with the same speed.
Reason (R): The acceleration of an object produced by a net applied force is directly related to
the magnitude of the force, and inversely related to the mass of the object.
a. Both A and R are true and R is the correct explanation of A.
b. Both A and R are true but R is not the correct explanation of A.
c. A is true but R is false.
d. A is false but R is true.
32. Assertion (A): Cell vomiting process occurs in cells to remove undigested substances,
secrete hormones, enzymes, and transport various substances.
Reason (R): Cell vomiting is a process in which the waste materials from the cell are extruded through
the plasma membrane by diffusing the vesicles containing materials needs to be taken out of the body.
a. Both A and R are true and R is the correct explanation of A.
b. Both A and R are true but R is not the correct explanation of A.
c. A is true but R is false.
d. A is false but R is true.
33. Assertion (A): Most of plant tissues are dead.
Reason (R): Due to the sedentary existence of plants, dead cells provide mechanical strength
more easily than live ones and need less maintenance.
a. Both A and R are true and R is the correct explanation of A.
b. Both A and R are true but R is not the correct explanation of A.
c. A is true but R is false.
d. A is false but R is true.
34. Assertion (A): When the displacement of a body is directly proportional to the square of the time.
Then the body is moving with uniform acceleration.
Reason (R): The slope of velocity-time graph with time axis gives acceleration.
a. Both A and R are true and R is the correct explanation of A.
b. Both A and R are true but R is not the correct explanation of A.
c. A is true but R is false.
d. A is false but R is true.
35. Assertion (A): Plasma membrane is selectively permeable.
Reason (R): Plasma membrane allows some molecules to pass through it more easily than
others. a. Both A and R are true and R is the correct explanation of A.
b. Both A and R are true but R is not the correct explanation of A.
c. A is true but R is false.
d. A is false but R is true.
36. A student by mistake mixed iron filings and sulphur powder. He wanted to separate them from
each other. The method you would advise him to use it to dissolve the mixture in
a. carbon disulphide
b. kerosene
c. cold water
d. boiling water
37. When two substances A and B are powdered together in a pestle and mortar, a large amount of heat
is evolved. As a result, a new substance C is formed. What is the nature of the new substance? i.
compound
ii. mixture
iii. element
a. Mixture
b. Compound
c. Element
d. Both compound and mixture
38. Lignified or thickened cell wall is a characteristic feature of
a. phloem
b. xylem
c. parenchyma
d. collenchyma
39. Statement A: Rocket can propel its self in a vacuum.
Statement B: Newton’s laws are universal.
Which of the two statements is true?
a. statement B
b. both A and B
c. none of these
d. statement A
40. Find the incorrect statement about Newton’s law of action and reaction. Action and
reaction: a. are equal in magnitude
b. act on the same bodies
c. act simultaneously
d. are different in direction
41. Match the following with the correct response:
(a) Prokaryotic cells (i) Complete cells

(b) Eukaryotic cells (ii) Removal of toxic substances

(c) Viruses (iii) The link between living and non-living

(d) Peroxisomes (iv) Nucleoid

a. (a) - (i), (b) - (iii), (c) - (ii), (d) - (iv)


b. (a) - (iv), (b) - (i), (c) - (iii), (d) - (ii)
c. (a) - (iii), (b) - (ii), (c) - (iv), (d) - (i)
d. (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii)
42. Which of the following plant tissues do not possess living protoplasm at
maturity?
a. Collenchyma
b. Trachea
c. Epidermis
d. Sclerenchyma
43. Match the following with the correct response.
(1) Friction (A) when one object rolls over another
(2) Limiting friction (B) Force just sufficient to move the object

(3) Sliding friction (iii)(C) Force which opposes motion

(4) Rolling friction (D) Force sufficient to slide one object over another

a. 1-A, 2-C, 3-B, 4-D


b. 1-C, 2-B, 3-D, 4-A
c. 1-B, 2-D, 3-A, 4-C
d. 1-D, 2-A, 3-C, 4-B
44. A mixture of iron filings and sulphur is heated in a hard boiling tube. Which of the following will
be observed?
a. Iron will melt first
b. Sulphur will melt first
c. The mixture becomes red hot without melting
d. Mixture sublimes
45. Match the following with correct response.
Column A ColumnB

(1) Substance retain their property (A) Element

(2) Elements are combined in fixed proportion by mass (B) Mixture

(3) Simple substance that cannot be broken down (C) Atom

(4) Smallest unit of compound (D) Compound

a. 1-C, 2-B, 3-D, 4-A


b. 1-B, 2-D. 3-A, 4-C
c. 1-D, 2-A, 3-C, 4-B
d. 1-A, 2-C, 3-B, 4-D
46. The energy currency of the cell is:
a. AMP
b. GTP
c. ATP
d. ADP
47. The cell walls of collenchyma tissues are unevenly thickened due to
a. Both cellulose and pectin
b. Pectin
c. Lignin
d. Cellulose
48. Branched involuntary muscles fibres are found in
a. ureters
b. limbs
c. heart
d. tongue
Section C
Question No. 49 to 52 are based on the given text. Read the text carefully and answer
the questions:

An element as a basic form of matter that cannot be broken down into simpler substances by
chemical reactions. Elements can be normally divided into metals, non-metals and metalloids.
Examples of metals are gold, silver, copper etc. Examples of non-metals are hydrogen, oxygen,
iodine etc. Some elements have intermediate properties between those of metals and non-metals, they
are called metalloids. A compound is a substance composed of two or more elements, chemically
combined with one another in a fixed proportion. The material obtained by the group I is a mixture of
the two substances. The properties of the mixture are the same as that of its constituents.

49. ________ is the only metal that is liquid at room temperature.


a. Silver
b. gold
c. copper
d. mercury
50. The colourless gas with the smell of rotten egg is found in
a. group II
b. group IV
c. group III
d. group I
51. The constituent of compounds are separated by
a. both chemical reaction and electrochemical reaction
b. electrochemical reaction
c. none of these
d. chemical reaction
52. Who was the first scientist to use the term elements?
a. Antoine Laurent
b. Robert Boyle
c. Robert Brown
d. none of these

Question No. 53 to 56 are based on the given text. Read the text carefully and answer
the questions:
The plasma membrane is the outermost covering of the cell that separates the contents of the cell from
its external environment. The plasma membrane allows or permits the entry and exit of some
materials in and out of the cell through osmosis and diffusion. Osmosis is the passage of water from a
region of high water concentration through a selectively permeable membrane to a region of low
water concentration till equilibrium is reached. If the medium has exactly the same water
concentration as the cell, there will be no net movement of water across the cell membrane. Osmosis
is a special case of diffusion through a selectively permeable membrane. Diffusion is important in the
exchange of gases and water in the life of a cell. In addition to this, the cell also obtains nutrition from
its environment.

53. In diffusion, there is a spontaneous movement of a substance from a region of ________


concentration to a region where its concentration is ________.
a. low, low
b. high, low
c. low, high
d. high, high
54. The plasma membrane is flexible and is made up of

I. protein
II. lipids
III. fat
IV. carbohydrates
a. (IV) and (I)
b. (II) and (III)
c. (I) and (II)
d. (III) and (IV)
55. Unicellular freshwater organisms and most plant cells tend to gain water through
a. osmosis
b. absorption
c. none of these
d. diffusion
56. The cell will shrink in which of the following solution?
a. none of these
b. Hypertonic solution
c. isotonic solution
d. Hypotonic solution
Question No. 57 to 60 are based on the given text. Read the text carefully and answer
the questions:

When an object moves in a circular path with uniform speed, its motion is called uniform
circular motion. The direction of motion changed at every point moving along the circular path.

57. Which one of the following is most likely not a case of uniform circular
motion? a. The motion of hours’ hand on the dial of a clock.
b. The motion of a racing car on a circular track.
c. The motion of the earth around the sun.
d. The motion of a toy train on a circular track.
58. The train is moving on a track(below image). Though the speed of a train is constant the direction
of motion (or direction of speed) is changing continuously. So, the train is exhibiting:

a. uniform motion
b. uniform notion
c. decelerated motion
d. accelerated motion
59. A cyclist goes around a circular track once every 2 minutes. If the radius of the circular track is
105 metres, calculate his speed.
a. 5.8 m/s
b. 5.6 m/s
c. 5.5 m/s
d. 5.7 m/s
60. Which of the following statement is correct?
I. Motion of the moon and the earth is an example of non-uniform circular
motion. II. When the velocity of an object changes, we say that the object is
accelerating. III. A satellite in a straight orbit around the earth.
IV. the change in the velocity could be due to a change in its magnitude or the direction of the
motion or both.
a. (II) and (IV)
b. (III) and (IV)
c. (I) and (II)
d. (II) and (III)

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