ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

Question # 1

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

0° A
90° B
180° C
None of these D

Question # 2

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

Maximum A
Minimum B
Zero C
None of these D

Question # 3

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

Maximum A
Minimum B
Zero C
Negative D

Question # 4

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 # 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

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 # 7

Work has a dimension as that of:

Torque A
Angular momentum B
Linear momentum C
Power D

Question # 8

Work is a:

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

Question # 9

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

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

Question # 10

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 # 11

The tidal energy is due to gravitational pull of :

sun A
moon B
Mars C
None of these D

Question # 12

The energy stored int he water of the dam is:

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

Question # 13

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

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

Question # 14

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

0° A
90° B
180° C
None of these D

Question # 15

SI Unit of work is

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

Question # 16

The power of an electric generating station is expressed in:

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

Question # 17

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 # 18

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 # 19

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 # 20

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 # 21

Work has the dimensions as that of

Torque A
Angular momentum B
Linear momentum C
Power D

Question # 22

Work is product of:

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

Question # 23

The commercial unit of electrical energy is :

K Watt A
KWH B
Horse power C
Joule D

Question # 24

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 # 25

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 # 26

A solar cell is made from:

Iron A
Silicon B
Germanium C
Copper D

Question # 27

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 # 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

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 # 30

A solar cell converts energy of the Sun into:

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

Sr.#	Question	Answer
1	Work is product of:	A. Force and velocity B. Heat and energy C. Force and displacement D. None of these
2	The consumption of energy by a 60 W bulb in 2 minutes is:	A. 2 watt-hour B. 120 watt-hour C. 30 watt-hour D. None of these
3	The types of mechanical energy is/are:	A. Kinetic energy B. Potential energy C. Both of these D. None of these
4	The unit of work in CGS system is	A. Joule B. Erg C. Dyne D. Watt
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 with the direction of motion will be:	A. 60° B. 90° C. 30° D. 0°
6	Watt x second is unit of:	A. Force B. Work C. Power D. None of these
7	Work done is maximum when angle between force and displacement is:	A. 0° B. 90° C. 180° D. None of these
8	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
9	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:`	A. Minimum work B. Maximum work C. Zero work D. Negative work
10	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

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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 done is maximum when angle between force and displacement is:

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

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

The work performed on an object does not depend on:

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:`

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

Work has a dimension as that of:

Work is a:

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

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

The tidal energy is due to gravitational pull of :

The energy stored int he water of the dam is:

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

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

SI Unit of work is

The power of an electric generating station is expressed in:

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

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

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

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

Work has the dimensions as that of

Work is product of:

The commercial unit of electrical energy 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 the direction of motion will be:

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

A solar cell is made from:

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

The work performed on an object does not depend on

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 solar cell converts energy of the Sun into:

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