Physics 9 Unit 3 MCQs Tests

In this post, we have prepared 6 MCQs test of Federal Board Physics 9 Unit 3 MCQs Tests.

Physics 9 Unit 3 MCQs Tests

Practice MCQs Test No 1

435

Class 9 Physics
Unit 3
Practice MCQs Test No 1

1 / 14

If 20 N force produces an acceleration of 5ms^-2 in a body then mass of the body will be:         

5 kg

4kg

1/4 kg

1/5 kg

2 / 14

Newton's first law of motion is valid only in the absence of:

Force

Momentum

Friction

Net force

3 / 14

Which of the following material lowers friction when pushed between metal plates?

Oil

Water

Air

Fine marble powder

4 / 14

Which one of the following is the unit of momentum?  

kgms^-2

Ns

Ns^-1

Nm

5 / 14

Which of the following is the unit of momentum?

Nm

Ns^-1

kgms^-2

Ns

6 / 14

The mass of a body:

None of the above

Decreases when moving with high velocity

Decreases when accelerated

Increases when accelerated

7 / 14

When horse pulls a cart, the action is on the:

Earth and cart

Cart

Earth

Horse

8 / 14

A boy jumps out of a moving bus. There is a danger for him to fall:

towards the moving bus

away from the bus

opposite to the direction of motion

in the direction of motion

9 / 14

Two bodies of masses m1 and m2 attached to the ends of an inextensible string passing over a frictionless pulling such that both move vertically. The acceleration of the body is:

[katex] \frac { { m }_{ 1 }+{ m }_{ 2 } }{ { m }_{ 1 }-{ m }_{ 2 } } g [/katex]

[katex] \frac { { m }_{ 1 }\times { m }_{ 2 } }{ { m }_{ 1 }+{ m }_{ 2 } } g [/katex]

[katex] \frac { { m }_{ 1 }-{ m }_{ 2 } }{ { m }_{ 1 }+{ m }_{ 2 } } g [/katex]

[katex] \frac { { 2m }_{ 1 }{ m }_{ 2 } }{ { m }_{ 1 }+{ m }_{ 2 } } g [/katex]

10 / 14

What is SI unit of coefficient of friction?

Kilogram

Second

No unit

Meter

11 / 14

A string is stretched by two equal and opposite forces 10 N each. The tension in the string is:

10 N

5 N

Zero

20 N

12 / 14

A string is stretched by two equal and opposite forces F Newton each. The tension in the string is:     

Zero

2F Newton

F Newton

½ F Newton

13 / 14

Mass of body is 2000g, its weight on the surface of earth is:

20000 N

2 N

20 N

0.2 N

14 / 14

Inertia depends upon:

Net force

Velocity

Mass

Force

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The average score is 57%

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Practice MCQs Test No 2

246

Class 9 Physics
Unit 3
Practice MCQs Test No 2

1 / 14

What will be the weight of a body of 20kg mass?

20 newton

10 newton

2 newton

200 newton

2 / 14

The momentum of an object of mass 4 kg, moving with velocity 100 cms^-1 is _____.

4000 Ns

0.4 Ns

400 Ns

4 Ns

3 / 14

If ‘m’ is the mass of an object then its weight on the surface of the Earth will be:

½ mg

mg

2mg

None of these

4 / 14

SI unit of momentum is:

kg ms^-1

ms

kg

kgm

5 / 14

The time required to change 22 Ns momentum by a force of 44 N is:

0.5 s

2 s

1 s

3 s

6 / 14

m/a

m

a

ma

7 / 14

The unit of momentum is:

kg ms^-1

kg^-1ms^-1

kg ms^-2

kg ms

8 / 14

N = _______.

kg s^-2

kg ms^-1

kg m

kg ms^-2

9 / 14

Inertia depends upon:

Force

Net Force

Mass

Velocity

10 / 14

When a horse pulls a cart, the action is done on the:

Horse

Both Cart and Earth

Cart

Earth

11 / 14

The value of ‘g’ on the surface of moon is 1.6ms^-2. What will be the weight of a 100kg body on the surface of the moon?

1000 N

1600 N

160 N

100 N

12 / 14

The acceleration produced by a force of 20N in a body of mass 8 kg will be:

2.5 ms^-2

0.4 ms^-2

2.5 ms^-1

0.4 ms^-1

13 / 14

F = _______.      

P_f - P_i

P_i - P_f

t / (P_f - P_i)

(P_f - P_i) / t

14 / 14

A block of mass 4kg is supported by a string. The tension in the string is:

20 N

40 N

0 N

4 N

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The average score is 56%

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Practice MCQs Test No 3

200

Class 9 Physics
Unit 3
Practice MCQs Test No 3

1 / 15

Action and reaction are equal in magnitude but opposite in direction is called _______ law of motion.

Second

Fourth

Third

First

2 / 15

The characteristic of a body due to which it tends to retain its state of rest or of uniform motion is known as:

Force

Momentum

Weight

Inertia

3 / 15

Law of inertia is actually the _______ law of motion.

Third

First

Fourth

Second

4 / 15

First taw of motion is also know as law of _______.

Acceleration

None of these

Torque

Inertia

5 / 15

The acceleration produced in a moving body is always in the direction of applied ________.

Speed

Momentum

Force

Velocity

6 / 15

_________ of a body is the direct measure of inertia.

All of above

Energy

Mass

Momentum

7 / 15

_______ is the agency which changes or tends to change the state of rest or of uniform motion of a body.

Weight

Force

Momentum

Inertia

8 / 15

If mass of the body is doubled while keeping the force constant, then acceleration will be:

doubled

One fourth

Four times

One half

9 / 15

The laws of motion established the relationship between motion and ________.

Acceleration

Force

Momentum

Torque

10 / 15

Laws of motion was presented by:

Archimedes

Einstein

Galileo

Newton

11 / 15

When a force is applied on the body, _______ is produced in the body.

Acceleration

Energy

Weight

None of the above

12 / 15

When force of 8 newton is applied on a body of mass 2kg then the acceleration produced will be:

16 ms^-2

4 ms^-2

0.4 ms^-2

160 ms^-2

13 / 15

Isaac Newton described the laws of motion in his famous book:

Al-Manazir

Qanoon-ul-Masoodi

Principia Mathematica

Kitab-ul-Astralab

14 / 15

If force applied on the body is doubled while keeping the mass constant then acceleration will be:

One fourth

Doubled

One half

Four times

15 / 15

SI unit of force is:

Kilogram

Dynes

Pound

newton

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The average score is 71%

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Practice MCQs Test No 4

152

Class 9 Physics
Unit 3
Practice MCQs Test No 4

1 / 15

Quantity of matter in a body is called:

Mass

Weight

Force

Velocity

2 / 15

The weight of a body of mass 10 Kg on earth will be:

10 N

100 N

1 N

1000 N

3 / 15

Weight of the body is measured by:

Physical Balance

Spring Balance

Free Fall Apparatus

All of these

4 / 15

The value of weight of a body of constant mass depends on:

Momentum

'g'

Inertia

Force

5 / 15

Mass of the body is measured by:

Spring balance

All of above

Physical balance

Free Fall Apparatus

6 / 15

Mass is a ______ quantity.

Derived

Negative

Vector

Scalar

7 / 15

________ of a body remains same everywhere.

Velocity

Acceleration

Mass

Weight

8 / 15

Unit of weight is _______.

ms^-1

Nm

N

Kg

9 / 15

The characteristic of a body which determines the magnitude of acceleration produced when a certain force acts upon it:

Inertia

Force

Weight

Mass

10 / 15

The Force with which earth attracts a body towards its center is known as:

Mass

Inertia

Force

Weight

11 / 15

When a block is lying on a smooth surface, its weight is balanced by:

Inertia

Momentum

Mass

Normal reaction

12 / 15

The _______ of a body always acts towards the center of the earth.

Velocity

Weight

Mass

Force

13 / 15

Weight is a _______ quantity.

Derived

Negative

Vector

Scalar

14 / 15

Walking on road is an example of _______ law of motion.

Third

Fourth

Second

First

15 / 15

______ of a body does not remain same everywhere.

All of above

Mass

Inertia

Weight

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The average score is 61%

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Practice MCQs Test No 5

134

Class 9 Physics
Unit 3
Practice MCQs Test No 5

1 / 10

Quantity of motion in a body is known as:

Velocity

Acceleration

Momentum

Mass

2 / 10

Product of mass and velocity is known as:

Acceleration

Speed

Momentum

Force

3 / 10

Motion of the rocket is an example of:

First law of motion

Weight

Law of conservation of energy

Law of conservation of momentum

4 / 10

Kgms^-1 = _______

W

N

Ns

J

5 / 10

SI unit of momentum is:

Both Ns and kgms^-1

kgms^-1

kgms^-2

Ns

6 / 10

The maximum value of friction is known as the force of  ______ friction.

Limiting

Dynamic

Static

Kinetic

7 / 10

Rate of change of momentum is equal to:

Force

Velocity

Impulse

Acceleration

8 / 10

Rolling friction is ______ than sliding friction.

Greater

Less

Equal

Quartered

9 / 10

The force that opposes the motion of moving objects is known as:

Friction

Gravity

Weight

Repulsion

10 / 10

Momentum of a moving body depends upon:

Both mass and velocity

Mass

Weight

Velocity

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The average score is 65%

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Challenge MCQs Test

296

---

Class 9 Physics
Unit 3
Full Chapter Challenge Test

1 / 68

Inertia depends upon:

Velocity

Net Force

Mass

Force

2 / 68

______ of a body does not remain same everywhere.

Weight

Inertia

Mass

All of above

3 / 68

The momentum of an object of mass 4 kg, moving with velocity 100 cms^-1 is _____.

400 Ns

0.4 Ns

4000 Ns

4 Ns

4 / 68

If force applied on the body is doubled while keeping the mass constant then acceleration will be:

Doubled

One fourth

One half

Four times

5 / 68

What is SI unit of coefficient of friction?

No unit

Second

Meter

Kilogram

6 / 68

The laws of motion established the relationship between motion and ________.

Torque

Force

Momentum

Acceleration

7 / 68

SI unit of momentum is:

kgm

kg

ms

kg ms^-1

8 / 68

If mass of the body is doubled while keeping the force constant, then acceleration will be:

doubled

One half

One fourth

Four times

9 / 68

When force of 8 newton is applied on a body of mass 2kg then the acceleration produced will be:

4 ms^-2

16 ms^-2

160 ms^-2

0.4 ms^-2

10 / 68

________ of a body remains same everywhere.

Velocity

Mass

Weight

Acceleration

11 / 68

The mass of a body:

Increases when accelerated

None of the above

Decreases when moving with high velocity

Decreases when accelerated

12 / 68

A block of mass 4kg is supported by a string. The tension in the string is:

4 N

40 N

20 N

0 N

13 / 68

If ‘m’ is the mass of an object then its weight on the surface of the Earth will be:

½ mg

mg

None of these

2mg

14 / 68

Rolling friction is ______ than sliding friction.

Less

Equal

Quartered

Greater

15 / 68

Quantity of motion in a body is known as:

Velocity

Momentum

Mass

Acceleration

16 / 68

Two bodies of masses m1 and m2 attached to the ends of an inextensible string passing over a frictionless pulling such that both move vertically. The acceleration of the body is:

[katex] \frac { { m }_{ 1 }-{ m }_{ 2 } }{ { m }_{ 1 }+{ m }_{ 2 } } g [/katex]

[katex] \frac { { m }_{ 1 }+{ m }_{ 2 } }{ { m }_{ 1 }-{ m }_{ 2 } } g [/katex]

[katex] \frac { { 2m }_{ 1 }{ m }_{ 2 } }{ { m }_{ 1 }+{ m }_{ 2 } } g [/katex]

[katex] \frac { { m }_{ 1 }\times { m }_{ 2 } }{ { m }_{ 1 }+{ m }_{ 2 } } g [/katex]

17 / 68

Walking on road is an example of _______ law of motion.

Second

First

Third

Fourth

18 / 68

Motion of the rocket is an example of:

First law of motion

Law of conservation of momentum

Weight

Law of conservation of energy

19 / 68

F = _______.      

t / (P_f - P_i)

(P_f - P_i) / t

P_f - P_i

P_i - P_f

20 / 68

Laws of motion was presented by:

Archimedes

Newton

Einstein

Galileo

21 / 68

Weight of the body is measured by:

Free Fall Apparatus

All of these

Spring Balance

Physical Balance

22 / 68

_________ of a body is the direct measure of inertia.

Mass

Energy

Momentum

All of above

23 / 68

Kgms^-1 = _______

Ns

J

N

W

24 / 68

Mass of the body is measured by:

All of above

Spring balance

Physical balance

Free Fall Apparatus

25 / 68

The time required to change 22 Ns momentum by a force of 44 N is:

0.5 s

3 s

2 s

1 s

26 / 68

The characteristic of a body which determines the magnitude of acceleration produced when a certain force acts upon it:

Weight

Mass

Force

Inertia

27 / 68

What will be the weight of a body of 20kg mass?

10 newton

200 newton

2 newton

20 newton

28 / 68

SI unit of force is:

Kilogram

Dynes

Pound

newton

29 / 68

A string is stretched by two equal and opposite forces 10 N each. The tension in the string is:

20 N

5 N

Zero

10 N

30 / 68

Mass is a ______ quantity.

Scalar

Derived

Vector

Negative

31 / 68

When a force is applied on the body, _______ is produced in the body.

Weight

Energy

None of the above

Acceleration

32 / 68

Which of the following is the unit of momentum?

Ns^-1

kgms^-2

Nm

Ns

33 / 68

Quantity of matter in a body is called:

Weight

Force

Mass

Velocity

34 / 68

Newton's first law of motion is valid only in the absence of:

Momentum

Net force

Force

Friction

35 / 68

The _______ of a body always acts towards the center of the earth.

Mass

Weight

Velocity

Force

36 / 68

If 20 N force produces an acceleration of 5ms^-2 in a body then mass of the body will be:         

1/5 kg

1/4 kg

5 kg

4kg

37 / 68

Inertia depends upon:

Force

Net force

Velocity

Mass

38 / 68

Action and reaction are equal in magnitude but opposite in direction is called _______ law of motion.

Second

Fourth

First

Third

39 / 68

The characteristic of a body due to which it tends to retain its state of rest or of uniform motion is known as:

Inertia

Weight

Momentum

Force

40 / 68

The acceleration produced by a force of 20N in a body of mass 8 kg will be:

0.4 ms^-1

2.5 ms^-2

2.5 ms^-1

0.4 ms^-2

41 / 68

When horse pulls a cart, the action is on the:

Cart

Earth

Earth and cart

Horse

42 / 68

The value of ‘g’ on the surface of moon is 1.6ms^-2. What will be the weight of a 100kg body on the surface of the moon?

100 N

160 N

1600 N

1000 N

43 / 68

First taw of motion is also know as law of _______.

Acceleration

None of these

Torque

Inertia

44 / 68

Isaac Newton described the laws of motion in his famous book:

Qanoon-ul-Masoodi

Al-Manazir

Principia Mathematica

Kitab-ul-Astralab

45 / 68

N = _______.

kg m

kg ms^-2

kg ms^-1

kg s^-2

46 / 68

Mass of body is 2000g, its weight on the surface of earth is:

2 N

0.2 N

20000 N

20 N

47 / 68

The weight of a body of mass 10 Kg on earth will be:

1 N

100 N

10 N

1000 N

48 / 68

The unit of momentum is:

kg ms^-2

kg ms^-1

kg ms

kg^-1ms^-1

49 / 68

Weight is a _______ quantity.

Negative

Derived

Scalar

Vector

50 / 68

The value of weight of a body of constant mass depends on:

Force

'g'

Inertia

Momentum

51 / 68

A string is stretched by two equal and opposite forces F Newton each. The tension in the string is:     

Zero

½ F Newton

2F Newton

F Newton

52 / 68

Rate of change of momentum is equal to:

Velocity

Force

Impulse

Acceleration

53 / 68

When a horse pulls a cart, the action is done on the:

Both Cart and Earth

Earth

Cart

Horse

54 / 68

The maximum value of friction is known as the force of  ______ friction.

Kinetic

Limiting

Static

Dynamic

55 / 68

Unit of weight is _______.

Nm

Kg

ms^-1

N

56 / 68

The force that opposes the motion of moving objects is known as:

Friction

Weight

Gravity

Repulsion

57 / 68

m/a

m

ma

a

58 / 68

_______ is the agency which changes or tends to change the state of rest or of uniform motion of a body.

Inertia

Weight

Force

Momentum

59 / 68

Law of inertia is actually the _______ law of motion.

Fourth

First

Third

Second

60 / 68

The Force with which earth attracts a body towards its center is known as:

Force

Weight

Mass

Inertia

61 / 68

When a block is lying on a smooth surface, its weight is balanced by:

Normal reaction

Momentum

Inertia

Mass

62 / 68

Which one of the following is the unit of momentum?  

Ns

Ns^-1

kgms^-2

Nm

63 / 68

Product of mass and velocity is known as:

Acceleration

Force

Speed

Momentum

64 / 68

Which of the following material lowers friction when pushed between metal plates?

Oil

Air

Fine marble powder

Water

65 / 68

The acceleration produced in a moving body is always in the direction of applied ________.

Velocity

Momentum

Speed

Force

66 / 68

SI unit of momentum is:

Ns

Both Ns and kgms^-1

kgms^-1

kgms^-2

67 / 68

Momentum of a moving body depends upon:

Both mass and velocity

Mass

Weight

Velocity

68 / 68

A boy jumps out of a moving bus. There is a danger for him to fall:

opposite to the direction of motion

in the direction of motion

away from the bus

towards the moving bus

Your score is

The average score is 63%

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