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

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ECAT Pre General Science Physics Chapter 4 Work and Energy

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Question # 1

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

Question # 2

Most of the geysers occur in:

Question # 3

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

Question # 4

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

Question # 5

Work is a Quantity

Question # 6

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

Question # 7

The work performed on an object does not depend on:

Question # 8

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

Question # 9

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

Question # 10

Tick the conservation force:

Question # 11

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:

Question # 12

Work is a

Question # 13

Maximum work is done when force and displacement are

Question # 14

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

Question # 15

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

Question # 16

1 J = ________?

Question # 17

The work performed on an object does not depend on:

Question # 18

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

Question # 19

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

Question # 20

Work has the dimensions as that of

Question # 21

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

Question # 22

The power of an electric generating station is expressed in:

Question # 23

SI Unit of work is

Question # 24

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

Question # 25

A solar cell converts energy of the Sun into:

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
2 Work is a scalar product of
A. Force, Velocity
B. Velocity, Displacement
C. Force, Displacement
D. Force, Momentum
3 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
4 When two protons are brought are brought closer potential energy of both of them:
A. Increases
B. Decreases
C. Remains same
D. None of these
5 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
6 Work is 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 is correct
7 Work done on a body by gravity in lifting it up to certain height is
A. Maximum
B. Minimum
C. Zero
D. Negative
8 The types of mechanical energy is/are:
A. Kinetic energy
B. Potential energy
C. Both of these
D. None of these
9 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
10 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

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