ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

Question # 1

Which of the following types 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 # 2

Work is a

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

Question # 3

If work is done at the rate of 2 k j per second, then total work done is half an hour will be:

0.5 Kwn A
2 Kwh B
1 Kwh C
None of these D

Question # 4

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 # 5

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 # 6

SI Unit of work is

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

Question # 7

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

Unity A
Infinity B
Zero C
-Fd D

Question # 8

A solar cell converts energy of the Sun into:

Heat energy A
Magnetic energy B
Light energy C
Sound energy D

Question # 9

Work is a:

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

Question # 10

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

Question # 11

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 # 12

Work done in lower and bucket into the well is:

Zero A
Positive B
Negative C
None of these D

Question # 13

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

0° A
90° B
180° C
None of these D

Question # 14

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:

60° A
90° B
30° C
0° D

Question # 15

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 # 16

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 # 17

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 # 18

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 # 19

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:

60° A
90° B
30° C
0° D

Question # 20

When velocity of moving body is doubled, the quantity which is also doubled is its:

K.E. A
Acceleration B
Momentum C
P.E. D

Question # 21

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 # 22

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 # 23

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 # 24

Most of the geysers occur in:

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

Question # 25

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 # 26

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 # 27

If we draw a graph between d (along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis, then area under this straight line represents:

Power A
Work B
Pressure C
None of these D

Question # 28

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

0° A
90° B
180° C
None of these D

Question # 29

Work is a Quantity

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

Question # 30

A two Kg block is held 1 m above the floor for 50 seconds, the work done is:

Zero A
10.2 J B
100 J C
980 J D

Sr.#	Question	Answer
1	A solar cell is made from:	A. Iron B. Silicon C. Germanium D. Copper
2	The work performed on an object does not depend on	A. Force applied B. Angle at which force is inclined to the displacement C. Initial velocity of the object D. Displacement
3	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
4	The ultimate source of money sources of energy is:	A. Sun B. Air C. Water D. Petroleum
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:	A. 1.25 J B. 12.5 J C. 125 J D. None of these
6	Which of the following is not a unit of power:	A. J-sec B. Watt C. N m/sec D. Horsepower
7	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
8	Energy stored in the spring of a watch is called	A. Potential energy B. Kinetic energy C. Nuclear energy D. Elastic potential
9	If work is done at the rate of 2 k j per second, then total work done is half an hour will be:	A. 0.5 Kwn B. 2 Kwh C. 1 Kwh D. None of these
10	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°

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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

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

Work is a

If work is done at the rate of 2 k j per second, then total work done is half an hour will be:

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

Work is a always done on a body when

SI Unit of work is

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

A solar cell converts energy of the Sun into:

Work is a:

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

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

Work done in lower and bucket into the well is:

Work done is maximum when angle between force and displacement 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 is 25J. the angle which the force makes with the direction of motion will be:

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

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

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

The work performed on an object does not depend on:

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:

When velocity of moving body is doubled, the quantity which is also doubled is its:

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

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

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

Most of the geysers occur in:

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:

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

If we draw a graph between d (along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis, then area under this straight line represents:

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

Work is a Quantity

A two Kg block is held 1 m above the floor for 50 seconds, the work done is:

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