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

19

Class 9 Physics
Unit 3
Practice MCQs Test No 1

1 / 14

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

Oil

Water

Fine marble powder

Air

2 / 14

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

1/4 kg

4kg

5 kg

1/5 kg

3 / 14

The mass of a body:

Increases when accelerated

Decreases when accelerated

None of the above

Decreases when moving with high velocity

4 / 14

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

towards the moving bus

opposite to the direction of motion

in the direction of motion

away from the bus

5 / 14

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

6 / 14

What is SI unit of coefficient of friction?

Second

Kilogram

No unit

Meter

7 / 14

Inertia depends upon:

Mass

Force

Velocity

Net force

8 / 14

Which of the following is the unit of momentum?

kgms^-2

Ns^-1

Nm

Ns

9 / 14

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

20 N

0.2 N

20000 N

2 N

10 / 14

Which one of the following is the unit of momentum?  

kgms^-2

Nm

Ns

Ns^-1

11 / 14

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

Cart

Earth and cart

Earth

Horse

12 / 14

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

Force

Momentum

Net force

Friction

13 / 14

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

Zero

20 N

5 N

10 N

14 / 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:

\frac { { m }_{ 1 }+{ m }_{ 2 } }{ { m }_{ 1 }-{ m }_{ 2 } } g

\frac { { m }_{ 1 }\times { m }_{ 2 } }{ { m }_{ 1 }+{ m }_{ 2 } } g

\frac { { m }_{ 1 }-{ m }_{ 2 } }{ { m }_{ 1 }+{ m }_{ 2 } } g

\frac { { 2m }_{ 1 }{ m }_{ 2 } }{ { m }_{ 1 }+{ m }_{ 2 } } g

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Practice MCQs Test No 2

12

Class 9 Physics
Unit 3
Practice MCQs Test No 2

1 / 14

N = _______.

kg ms^-2

kg s^-2

kg ms^-1

kg m

2 / 14

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

2.5 ms^-1

0.4 ms^-1

2.5 ms^-2

0.4 ms^-2

3 / 14

SI unit of momentum is:

kg ms^-1

ms

kgm

kg

4 / 14

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

2mg

½ mg

mg

None of these

5 / 14

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

0 N

20 N

40 N

4 N

6 / 14

F = _______.      

P_f - P_i

P_i - P_f

(P_f - P_i) / t

t / (P_f - P_i)

7 / 14

The unit of momentum is:

kg^-1ms^-1

kg ms

kg ms^-2

kg ms^-1

8 / 14

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

0.4 Ns

4 Ns

400 Ns

4000 Ns

9 / 14

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

Both Cart and Earth

Horse

Cart

Earth

10 / 14

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

200 newton

2 newton

20 newton

10 newton

11 / 14

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

1 s

0.5 s

3 s

2 s

12 / 14

Inertia depends upon:

Velocity

Mass

Net Force

Force

13 / 14

ma

a

m/a

m

14 / 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?

160 N

1600 N

100 N

1000 N

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Practice MCQs Test No 3

9

Class 9 Physics
Unit 3
Practice MCQs Test No 3

1 / 15

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

Velocity

Force

Momentum

Speed

2 / 15

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

Fourth

Second

Third

First

3 / 15

_________ of a body is the direct measure of inertia.

All of above

Mass

Energy

Momentum

4 / 15

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

One fourth

Four times

Doubled

One half

5 / 15

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

Momentum

Force

Inertia

Weight

6 / 15

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

16 ms^-2

160 ms^-2

0.4 ms^-2

4 ms^-2

7 / 15

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

Four times

One half

doubled

One fourth

8 / 15

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

Momentum

Acceleration

Torque

Force

9 / 15

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

Inertia

Acceleration

Torque

None of these

10 / 15

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

Energy

Weight

Acceleration

None of the above

11 / 15

Law of inertia is actually the _______ law of motion.

Fourth

Second

Third

First

12 / 15

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

Principia Mathematica

Al-Manazir

Qanoon-ul-Masoodi

Kitab-ul-Astralab

13 / 15

Laws of motion was presented by:

Galileo

Newton

Einstein

Archimedes

14 / 15

SI unit of force is:

Pound

newton

Kilogram

Dynes

15 / 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

Weight

Inertia

Momentum

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Practice MCQs Test No 4

9

Class 9 Physics
Unit 3
Practice MCQs Test No 4

1 / 15

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

Weight

Mass

Velocity

Force

2 / 15

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

1000 N

1 N

100 N

10 N

3 / 15

Weight of the body is measured by:

Spring Balance

All of these

Physical Balance

Free Fall Apparatus

4 / 15

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

Momentum

'g'

Inertia

Force

5 / 15

Mass is a ______ quantity.

Scalar

Vector

Negative

Derived

6 / 15

________ of a body remains same everywhere.

Weight

Acceleration

Velocity

Mass

7 / 15

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

Inertia

Mass

Weight

Force

8 / 15

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

Momentum

Normal reaction

Inertia

Mass

9 / 15

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

Inertia

Force

Weight

Mass

10 / 15

Unit of weight is _______.

Kg

N

ms^-1

Nm

11 / 15

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

First

Fourth

Second

Third

12 / 15

Quantity of matter in a body is called:

Mass

Velocity

Weight

Force

13 / 15

______ of a body does not remain same everywhere.

Inertia

Weight

Mass

All of above

14 / 15

Weight is a _______ quantity.

Negative

Derived

Scalar

Vector

15 / 15

Mass of the body is measured by:

Physical balance

Spring balance

All of above

Free Fall Apparatus

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The average score is 58%

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Practice MCQs Test No 5

7

Class 9 Physics
Unit 3
Practice MCQs Test No 5

1 / 10

SI unit of momentum is:

kgms^-1

Both Ns and kgms^-1

kgms^-2

Ns

2 / 10

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

Static

Dynamic

Kinetic

Limiting

3 / 10

Rolling friction is ______ than sliding friction.

Equal

Less

Quartered

Greater

4 / 10

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

Gravity

Friction

Repulsion

Weight

5 / 10

Quantity of motion in a body is known as:

Acceleration

Mass

Momentum

Velocity

6 / 10

Kgms^-1 = _______

W

N

J

Ns

7 / 10

Rate of change of momentum is equal to:

Acceleration

Velocity

Impulse

Force

8 / 10

Product of mass and velocity is known as:

Acceleration

Speed

Force

Momentum

9 / 10

Motion of the rocket is an example of:

Law of conservation of energy

Law of conservation of momentum

Weight

First law of motion

10 / 10

Momentum of a moving body depends upon:

Velocity

Weight

Both mass and velocity

Mass

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Challenge MCQs Test

7

---

Class 9 Physics
Unit 3
Full Chapter Challenge Test

1 / 68

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

40 N

20 N

0 N

4 N

2 / 68

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

Friction

Net force

Force

Momentum

3 / 68

Weight is a _______ quantity.

Scalar

Negative

Derived

Vector

4 / 68

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

0.4 ms^-2

4 ms^-2

160 ms^-2

16 ms^-2

5 / 68

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

None of these

Acceleration

Torque

Inertia

6 / 68

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

Inertia

Force

Momentum

'g'

7 / 68

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

3 s

1 s

0.5 s

2 s

8 / 68

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

10 N

Zero

20 N

5 N

9 / 68

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

Gravity

Weight

Repulsion

Friction

10 / 68

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

Force

Momentum

Speed

Velocity

11 / 68

SI unit of momentum is:

kgm

ms

kg ms^-1

kg

12 / 68

The unit of momentum is:

kg^-1ms^-1

kg ms

kg ms^-1

kg ms^-2

13 / 68

Inertia depends upon:

Force

Velocity

Net force

Mass

14 / 68

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

First

Third

Fourth

Second

15 / 68

Which one of the following is the unit of momentum?  

kgms^-2

Ns

Ns^-1

Nm

16 / 68

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

Force

Mass

Weight

Inertia

17 / 68

Mass is a ______ quantity.

Vector

Derived

Scalar

Negative

18 / 68

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

0.2 N

2 N

20 N

20000 N

19 / 68

Laws of motion was presented by:

Archimedes

Newton

Einstein

Galileo

20 / 68

SI unit of momentum is:

Ns

kgms^-2

Both Ns and kgms^-1

kgms^-1

21 / 68

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

1/4 kg

1/5 kg

5 kg

4kg

22 / 68

Quantity of motion in a body is known as:

Mass

Momentum

Velocity

Acceleration

23 / 68

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

2 newton

200 newton

10 newton

20 newton

24 / 68

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

Mass

Momentum

Normal reaction

Inertia

25 / 68

Product of mass and velocity is known as:

Speed

Momentum

Force

Acceleration

26 / 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:

\frac { { 2m }_{ 1 }{ m }_{ 2 } }{ { m }_{ 1 }+{ m }_{ 2 } } g

\frac { { m }_{ 1 }+{ m }_{ 2 } }{ { m }_{ 1 }-{ m }_{ 2 } } g

\frac { { m }_{ 1 }-{ m }_{ 2 } }{ { m }_{ 1 }+{ m }_{ 2 } } g

\frac { { m }_{ 1 }\times { m }_{ 2 } }{ { m }_{ 1 }+{ m }_{ 2 } } g

27 / 68

SI unit of force is:

Pound

Dynes

newton

Kilogram

28 / 68

Law of inertia is actually the _______ law of motion.

First

Fourth

Third

Second

29 / 68

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

2F Newton

F Newton

Zero

½ F Newton

30 / 68

F = _______.      

(P_f - P_i) / t

t / (P_f - P_i)

P_i - P_f

P_f - P_i

31 / 68

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

Earth

Earth and cart

Horse

Cart

32 / 68

N = _______.

kg m

kg s^-2

kg ms^-2

kg ms^-1

33 / 68

Quantity of matter in a body is called:

Velocity

Force

Mass

Weight

34 / 68

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

Four times

One half

One fourth

doubled

35 / 68

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

None of these

mg

½ mg

2mg

36 / 68

Mass of the body is measured by:

All of above

Free Fall Apparatus

Physical balance

Spring balance

37 / 68

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

Momentum

Torque

Acceleration

Force

38 / 68

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

Force

Velocity

Mass

Weight

39 / 68

The mass of a body:

Increases when accelerated

None of the above

Decreases when accelerated

Decreases when moving with high velocity

40 / 68

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

Energy

Acceleration

None of the above

Weight

41 / 68

Motion of the rocket is an example of:

Law of conservation of momentum

First law of motion

Law of conservation of energy

Weight

42 / 68

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

Doubled

One fourth

Four times

One half

43 / 68

Rate of change of momentum is equal to:

Velocity

Acceleration

Force

Impulse

44 / 68

Rolling friction is ______ than sliding friction.

Equal

Less

Greater

Quartered

45 / 68

________ of a body remains same everywhere.

Mass

Acceleration

Velocity

Weight

46 / 68

_________ of a body is the direct measure of inertia.

All of above

Mass

Momentum

Energy

47 / 68

Weight of the body is measured by:

Physical Balance

Spring Balance

Free Fall Apparatus

All of these

48 / 68

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

10 N

100 N

1000 N

1 N

49 / 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

Force

Momentum

Weight

50 / 68

Unit of weight is _______.

Kg

Nm

N

ms^-1

51 / 68

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

Weight

Force

Momentum

Inertia

52 / 68

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

Force

Weight

Mass

Inertia

53 / 68

Kgms^-1 = _______

W

Ns

N

J

54 / 68

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

400 Ns

4000 Ns

4 Ns

0.4 Ns

55 / 68

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

Both Cart and Earth

Cart

Horse

Earth

56 / 68

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

away from the bus

towards the moving bus

in the direction of motion

opposite to the direction of motion

57 / 68

______ of a body does not remain same everywhere.

Mass

Weight

Inertia

All of above

58 / 68

ma

m

a

m/a

59 / 68

Momentum of a moving body depends upon:

Mass

Weight

Velocity

Both mass and velocity

60 / 68

Which of the following is the unit of momentum?

Ns^-1

kgms^-2

Ns

Nm

61 / 68

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

First

Fourth

Second

Third

62 / 68

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

Fine marble powder

Water

Air

Oil

63 / 68

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

Kinetic

Dynamic

Limiting

Static

64 / 68

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

0.4 ms^-2

2.5 ms^-1

2.5 ms^-2

0.4 ms^-1

65 / 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?

160 N

100 N

1600 N

1000 N

66 / 68

Inertia depends upon:

Force

Velocity

Net Force

Mass

67 / 68

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

Qanoon-ul-Masoodi

Principia Mathematica

Al-Manazir

Kitab-ul-Astralab

68 / 68

What is SI unit of coefficient of friction?

Kilogram

Second

No unit

Meter

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