ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

Question # 1

Work is 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 is correct D

Question # 2

Work done in lower and bucket into the well is:

Zero A
Positive B
Negative C
None of these D

Question # 3

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 # 4

Work done is lowering the bucket into the well is:

Zero A
Positive B
Negative C
None of these D

Question # 5

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 # 6

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 # 7

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 # 8

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 # 9

Work is a Quantity

Vector A
Scalar B
Non-physical C
None of these D

Question # 10

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

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

Question # 11

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 # 12

Work-energy principle states that work done on the body by applied force is equal to change in:

Potential energy A
Kinetic nergy B
Linear momentum C
None of these D

Question # 13

When force and displacement are perpendicular to each other than work is equal to

Unity A
Infinity B
Zero C
-Fd D

Question # 14

The commercial unit of electrical energy is :

K Watt A
KWH B
Horse power C
Joule D

Question # 15

Work has a dimension as that of:

Torque A
Angular momentum B
Linear momentum C
Power D

Question # 16

The work done on the body will be zero if:

No force is applied on the body A
Force is applied but no displacement B
Angle between F(force) and d(displacement) is 90° C
All of these are correct D

Question # 17

In the force applied to parallel to the direction of motion, then the work done is:

Positive A
Negative B
Zero C
None of these D

Question # 18

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

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

Question # 19

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 # 20

A 2 kg block is held 1 m above floor for 50 seconds. The work done is:

Zero A
10.2 J B
100 J C
980 J D

Question # 21

Work has the dimensions as that of

Torque A
Angular momentum B
Linear momentum C
Power D

Question # 22

Work is a

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

Question # 23

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 # 24

The space around the earth within which it expects a force of attraction on other bodies is known as:

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

Question # 25

Most of the geysers occur in:

Volcanic regions A
Magnetic regions B
Northern region C
None of these D

Question # 26

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 # 27

Which force is not a conservative force:

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

Question # 28

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 # 29

A 100 kg car is moving at a speed of 10 m/sec and comes to rest after covering a distance of 50 m. the amount of work done against friction is:

+5 x 10¹J A
+5 x 10²J B
+5 x 10³J C
+5 x 10⁴J D

Question # 30

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

Sr.#	Question	Answer
1	When the body is 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
2	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
3	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 with the direction of motion will be:	A. 60° B. 90° C. 30° D. 0°
4	Which force is not a conservative force?	A. Frictional force B. Gravitational force C. Electric force D. Elastic spring force
5	Work is a always done on a body when	A. A force acts on it B. It moves through certain distance C. None of A or B is correct D. Both A and B are correct
6	A 2 kg block is held 1 m above floor for 50 seconds. The work done is:	A. Zero B. 10.2 J C. 100 J D. 980 J
7	The field in which work done in moving a body between two points depends upon the path followed is called:	A. Conservative field B. Non-conservative field C. Electric field D. None of these
8	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
9	Work has the dimensions as that of	A. Torque B. Angular momentum C. Linear momentum D. Power
10	If force and displacement are in opposite direction, the work done is taken as:	A. Positive work B. Negative work C. Zero work D. Infinte work

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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

Work is always done on a body when:

Work done in lower and bucket into the well is:

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

Work done is lowering the bucket into the well 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:`

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

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

The work performed on an object does not depend on

Work is a Quantity

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

Work is a always done on a body when

Work-energy principle states that work done on the body by applied force is equal to change in:

When force and displacement are perpendicular to each other than work is equal to

The commercial unit of electrical energy is :

Work has a dimension as that of:

The work done on the body will be zero if:

In the force applied to parallel to the direction of motion, then the work done is:

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

Work is always done on a body when:

A 2 kg block is held 1 m above floor for 50 seconds. The work done is:

Work has the dimensions as that of

Work is a

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

The space around the earth within which it expects a force of attraction on other bodies is known as:

Most of the geysers occur in:

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

Which force is not a conservative force:

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

A 100 kg car is moving at a speed of 10 m/sec and comes to rest after covering a distance of 50 m. the amount of work done against friction is:

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

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