ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

Question # 1

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 # 2

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 # 3

Escape velocity from surface of Moon as compared to that from Earth surface is:

Greater A
Smaller B
Equal C
None of thes D

Question # 4

The angle between centripetal force and displacement of the body moving in a circle is:

0° A
90° B
180° C
None of these 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 and 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

Work is always done on a body when:

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

Question # 7

The work done in 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 # 8

The power of an electric generating station is expressed in:

Kilo Jule A
Kilowatt-hour B
Kilo watt C
Watt D

Question # 9

The value of escape velocity of Earth planet comes out to be:

11 m/sec A
11 km/sec B
11 km/hour C
11 cm/sec D

Question # 10

Watt x second is unit of:

Force A
Work B
Power C
None of these D

Question # 11

Work done by the force of friction is always

Positive A
Zero B
Negative C
Maximum D

Question # 12

Work is a:

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

Question # 13

Work done is lowering the bucket into the well is:

Zero A
Positive B
Negative C
None of these D

Question # 14

Work has a dimension as that of:

Torque A
Angular momentum B
Linear momentum C
Power D

Question # 15

The tidal energy is produced due to rotation of Earth relative to:

Moon A
Sun B
Oceans C
Water D

Question # 16

Work has the dimensions as that of

Torque A
Angular momentum B
Linear momentum C
Power D

Question # 17

Work is a scalar product of

Force, Velocity A
Velocity, Displacement B
Force, Displacement C
Force, Momentum D

Question # 18

The dimensions of work

[MLT^-1] A
[MLT^-2] B
[ML²T^-2] C
[MLT] D

Question # 19

The types of mechanical energy is/are:

Kinetic energy A
Potential energy B
Both of these C
None of these D

Question # 20

Work is a:

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

Question # 21

Maximum work is done when force and displacement are

Parallel A
Antiparallel B
Perpendicular C
Both a and b D

Question # 22

A field in which the work done in moving a body along closed path is zero is called

Nuclear Field A
Conservative field B
Gravitational field C
Non-conservative field D

Question # 23

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 # 24

The work performed on an object does not depend on

Force applied A
Angle at which force is inclined to the displacement B
Initial velocity of the object C
Displacement D

Question # 25

The total work done in moving the body up and then down through the same height in a gravitational field is equal to:

mgh A
Its wight B
Weight X height C
Zero D

Question # 26

Which force is not a conservative force?

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

Question # 27

Work has the dimension as that of:

Torque A
Angular momentum B
Linear momentum C
Power D

Question # 28

The work performed on an object does not depend on:

Force applied A
Angle at which force is inclined to the displacement B
Initial velocity of the object C
Displacement D

Question # 29

Power is a :

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

Question # 30

Work done along a closed path in a gravitational field is:

Maximum A
Minimum B
Zero C
Unity D

Sr.#	Question	Answer
1	The value of escape velocity of Earth planet comes out to be:	A. 11 m/sec B. 11 km/sec C. 11 km/hour D. 11 cm/sec
2	1 J = ________?	A. 10⁷erges B. 10^-7erges C. 10⁵erges D. 10^-5erges
3	Work has a dimension as that of:	A. Torque B. Angular momentum C. Linear momentum D. Power
4	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
5	The work done by a force, keeping an object in circular motion with constant speed is:	A. Zero J B. 1 J C. 0.1 J D. 0.01 J
6	If force and displacement are in opposite direction, the work done is taken as:	A. Positive work B. Negative work C. Zero work D. Infinite work
7	The energy stored int he water of the dam is:	A. Electric energy B. Kinetic energy C. Potential energy D. None of these
8	A field in which the work done is moving a body along closed path is zero is called:	A. Nuclear filed B. Conservative field C. Gravitational field D. Non-conservative field
9	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
10	If one newton force acts on a body and displaces the body through 1m work done on body is	A. 1 dyne B. 1 joule C. 1KJ D. 1 Watt

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

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

Escape velocity from surface of Moon as compared to that from Earth surface is:

The angle between centripetal force and displacement of the body moving in a circle is:

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

Work is always done on a body when:

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

The power of an electric generating station is expressed in:

The value of escape velocity of Earth planet comes out to be:

Watt x second is unit of:

Work done by the force of friction is always

Work is a:

Work done is lowering the bucket into the well is:

Work has a dimension as that of:

The tidal energy is produced due to rotation of Earth relative to:

Work has the dimensions as that of

Work is a scalar product of

The dimensions of work

The types of mechanical energy is/are:

Work is a:

Maximum work is done when force and displacement are

A field in which the work done in moving a body along closed path is zero is called

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

The work performed on an object does not depend on

The total work done in moving the body up and then down through the same height in a gravitational field is equal to:

Which force is not a conservative force?

Work has the dimension as that of:

The work performed on an object does not depend on:

Power is a :

Work done along a closed path in a gravitational field is:

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