ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

Question # 1

Power is a :

Vector quantity A
Base quantity B
Scalar quantity 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

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

Question # 4

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 # 5

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 # 6

A body moves a distance of 10 m among a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which the force makes with the direction of motion of a body is:

0° A
30° B
60° C
90° D

Question # 7

Work is a:

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

Question # 8

Area under the force displacement graph gives

Power A
Work B
Heat C
Energy D

Question # 9

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 # 10

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 # 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

The types of mechanical energy is/are:

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

Question # 13

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 # 14

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 # 15

SI Unit of work is

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

Question # 16

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 # 17

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 # 18

Work has the dimensions as that of

Torque A
Angular momentum B
Linear momentum C
Power 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

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 # 21

Which one is conservative force

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

Question # 22

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

Moon A
Sun B
Oceans C
Water D

Question # 23

Tick the conservation force:

Tension in a string A
Air resistance force B
Elastic spring C
Frictional force D

Question # 24

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 # 25

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

0° A
90° B
180° C
None of these D

Question # 26

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 # 27

Work done is independent of path followed in _______

Gravitational field A
Magnetic field B
Electric field C
All of these D

Question # 28

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 # 29

Work is a:

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

Question # 30

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

Sr.#	Question	Answer
1	Which of the following type of force can do no work on the particle on which it acts:	A. Frictional force B. Gravitational force C. Electric force D. Centripetal force
2	Which of the following is not a unit of power:	A. J-sec B. Watt C. N m/sec D. Horsepower
3	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:	A. Power B. Work C. Pressure D. None of these
4	The space around the earth in which its gravitational force acts on a body is called	A. Electric Field B. Gravitational field C. Magnetic field D. Conservative field
5	Work-energy principle states that work done on the body by applied force is equal to change in:	A. Potential energy B. Kinetic nergy C. Linear momentum D. None of these
6	A laborer carrying a load on his head moves from the 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
7	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:	A. Power B. Work C. Pressure D. None of these
8	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
9	Work has the dimension as that of:	A. Torque B. Angular momentum C. Linear momentum D. Power
10	The energy stored int he water of the dam is:	A. Electric energy B. Kinetic energy C. Potential energy D. None of these

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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

Power is a :

Work is a always done on a body when

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

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

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

A body moves a distance of 10 m among a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which the force makes with the direction of motion of a body is:

Work is a:

Area under the force displacement graph gives

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

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

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

The types of mechanical energy is/are:

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 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:

SI Unit of work 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:

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

Work has the dimensions as that of

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

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

Which one is conservative force

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

Tick the conservation force:

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

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

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

Work done is independent of path followed in _______

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:

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

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