ECAT Pre Computer Science Chapter 4 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 4 Work and Energy

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ECAT Physics Chapter 4 Work and Energy

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Question # 1

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

Question # 2

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 # 3

The amount of coal used since 1945 up till now as compared to that used in the whole of history before that is

Question # 4

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

Question # 5

Which force is not a conservative force?

Question # 6

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

Question # 7

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:`

Question # 8

Most of the geysers occur in:

Question # 9

Work done in lower and bucket into the well is:

Question # 10

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

Question # 11

Work is a

Question # 12

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

Question # 13

Work is a:

Question # 14

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

Question # 15

Tick the conservation force:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 If force and displacement are in opposite direction, the work done is taken as
A. Positive work
B. Negative work
C. Zero work
D. Infinite work
3 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
4 The ultimate source of money sources of energy is:
A. Sun
B. Air
C. Water
D. Petroleum
5 The space around the earth within which it expects a force of attraction on other bodies is known as:
A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
6 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
7 Which force is not a conservative force?
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
8 The amount of coal used since 1945 up till now as compared to that used in the whole of history before that is
A. Much more
B. Very small
C. No amount at all
D. None of these
9 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
10 Work done along a closed path in a gravitational field is:
A. Maximum
B. Minimum
C. Zero
D. Unity

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