ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

Question # 1

When two protons are brought are brought closer potential energy of both of them:

Increases A
Decreases B
Remains same C
None of these D

Question # 2

Work is a always done on a body when

A force acts on it A
It moves through certain distance B
None of A or B is correct C
Both A and B are correct D

Question # 3

The work done moving a body between two points in a conservation field is independent of the:

Direction A
Force applied B
Path followed by the body ` C
Power D

Question # 4

The ultimate source of money sources of energy is:

Sun A
Air B
Water C
Petroleum D

Question # 5

A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, Which makes an angle of 60° with the horizontal. The work done by the boy is:

1.25 J A
12.5 J B
125 J C
None of these D

Question # 6

The work done by a force keeping an object in circular motion with constant speed is:

Zero J. A
0.1 J B
1 J C
0.01 J D

Question # 7

Power is a :

Vector quantity A
Base quantity B
Scalar quantity C
None of these D

Question # 8

Work done is maximum when angle between force and displacement is:

0° A
90° B
180° C
None of these D

Question # 9

The work done in moving a body between two points in a conservative field is independent of the

Direction A
Force applied B
Path followed by the body C
Power D

Question # 10

The field in which work done in moving a body between two points depends upon the path followed is called:

Conservative field A
Non-conservative field B
Electric field C
None of these D

Question # 11

When a body moves against the force of friction on a horizontal plane, the work done by the body is:

Positive A
Negative B
Zero C
None of these D

Question # 12

A labourer carrying a distance a load on his head moves from rest on a horizontal road to another point where he comes to rest. He has done:`

Minimum work A
Maximum work
B
Zero work C
Negative work D

Question # 13

If force and displacement are in opposite direction, the work done is taken as:

Positive work A
Negative work B
Zero work C
Infinite work D

Question # 14

When a falling body hits ground, its KE changes to _____ energy.

Potential A
Chemical B
Mechanical C
sound and heat D

Question # 15

If one newton force acts on a body and displaces the body through 1m work done on body is

1 dyne A
1 joule B
1KJ C
1 Watt D

Question # 16

Which of the following type of force can do no work on the particle on which it acts:

Frictional force A
Gravitational force B
Electric force C
Centripetal force D

Question # 17

Work is product of:

Force and velocity A
Heat and energy B
Force and displacement C
None of these D

Question # 18

Which one is conservative force

Electric force A
Frictional force B
Normal force C
Air resistance D

Question # 19

The space around the earth in which its gravitational force acts on a body is called

Electric Field A
Gravitational field B
Magnetic field C
Conservative field D

Question # 20

The consumption of energy by a 60 W bulb in 2 minutes is:

2 watt-hour A
120 watt-hour B
30 watt-hour C
None of these D

Question # 21

When the body is moves against the force of friction on a horizontal plane, the work done by the body is:

Positive A
Negative B
Zero C
None of these D

Question # 22

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done in 25J. The angle which the force makes with the direction of motion will be

60° A
90° B
30° C
0° D

Question # 23

The Space around the Earth within which it exerts a force of attraction on other bodies is known as

Nuclear field A
Conservative field B
Electric field C
Gravitational field D

Question # 24

Work done is maximum when angle between force and displacement is:

0° A
90° B
180° C
None of these D

Question # 25

Which force is not a conservative force?

Frictional force A
Gravitational force B
Electric force C
Elastic spring force D

Question # 26

When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is

0.5 J A
2 J B
0.25 J C
1 J D

Question # 27

SI Unit of work is

Nm^-1 A
Joule B
Nms C
Both a and b D

Question # 28

Work done on a body by gravity in lifting it up to certain height is

Maximum A
Minimum B
Zero C
Negative D

Question # 29

When a wall is pushed by a person very strongly, he has done:

Maximum work A
Zero work B
Positive work C
Negative work D

Question # 30

If force and displacement are in opposite direction, the work done is taken as:

Positive work A
Negative work B
Zero work C
Infinte work D

Sr.#	Question	Answer
1	Work is always done on a body when:	A. A force acts on it B. It moves through certain distance C. None of A and B is correct D. Both A and B is correct
2	A solar cell is made from:	A. Iron B. Silicon C. Germanium D. Copper
3	The work done in moving a body between two points in a conservative field is independent of the	A. Direction B. Force applied C. Path followed by the body D. Power
4	Work done on a body by gravity in lifting it up to certain height is	A. Maximum B. Minimum C. Zero D. Negative
5	A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done is 25J. The angle which the force makes the direction of motion will be:	A. 60° B. 90° C. 30° D. 0°
6	The work done moving a body between two points in a conservation field is independent of the:	A. Direction B. Force applied C. Path followed by the body ` D. Power
7	When a body moves against the force of friction on a horizontal plane, the work done by the body is:	A. Positive B. Negative C. Zero D. None of these
8	When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is:	A. 2 J B. 0.25 J C. 1 J D. 0.5 J
9	A field in which the work done in moving a body along closed path is zero is called	A. Nuclear Field B. Conservative field C. Gravitational field D. Non-conservative field
10	When a falling body hits ground, its KE changes to _____ energy.	A. Potential B. Chemical C. Mechanical D. sound and heat

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ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 4 Work and Energy

ECAT Pre General Science Physics Chapter 4 Work and Energy

When two protons are brought are brought closer potential energy of both of them:

Work is a always done on a body when

The work done moving a body between two points in a conservation field is independent of the:

The ultimate source of money sources of energy is:

A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, Which makes an angle of 60° with the horizontal. The work done by the boy is:

The work done by a force keeping an object in circular motion with constant speed is:

Power is a :

Work done is maximum when angle between force and displacement is:

The work done in moving a body between two points in a conservative field is independent of the

The field in which work done in moving a body between two points depends upon the path followed is called:

When a body moves against the force of friction on a horizontal plane, the work done by the body is:

A labourer carrying a distance a load on his head moves from rest on a horizontal road to another point where he comes to rest. He has done:`

If force and displacement are in opposite direction, the work done is taken as:

When a falling body hits ground, its KE changes to _____ energy.

If one newton force acts on a body and displaces the body through 1m work done on body is

Which of the following type of force can do no work on the particle on which it acts:

Work is product of:

Which one is conservative force

The space around the earth in which its gravitational force acts on a body is called

The consumption of energy by a 60 W bulb in 2 minutes is:

When the body is moves against the force of friction on a horizontal plane, the work done by the body is:

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done in 25J. The angle which the force makes with the direction of motion will be

The Space around the Earth within which it exerts a force of attraction on other bodies is known as

Work done is maximum when angle between force and displacement is:

Which force is not a conservative force?

When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is

SI Unit of work is

Work done on a body by gravity in lifting it up to certain height is

When a wall is pushed by a person very strongly, he has done:

If force and displacement are in opposite direction, the work done is taken as:

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