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

Watt x second is unit of:

Question # 2

The tidal energy is due to gravitational pull of :

Question # 3

Which force is not a conservative force:

Question # 4

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

Question # 5

1 J = ________?

Question # 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:

Question # 7

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

Question # 8

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

Question # 9

The work performed on an object does not depend on

Question # 10

Which one is conservative force

Question # 11

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

Question # 12

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

Question # 13

The commercial unit of electrical energy is :

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 Most of the geysers occur in:
A. Volcanic regions
B. Magnetic regions
C. Northern region
D. None of these
3 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
4 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
5 When a body moves against the force of friction on a horizontal plane, the work done by the body is:
A. Positive
B. Negative
C. Zero
D. None of these
6 In the force applied is parallel to the direction of motion, then work done is:
A. Maximum
B. Minimum
C. Zero
D. None of these
7 The tidal energy is due to gravitational pull of :
A. sun
B. moon
C. Mars
D. None of these
8 A field in which the work done is moving a body along closed path is zero is called:
A. Nuclear filed
B. Conservative field
C. Gravitational field
D. Non-conservative field
9 Area under the force displacement graph gives
A. Power
B. Work
C. Heat
D. Energy
10 Which one is conservative force
A. Electric force
B. Frictional force
C. Normal force
D. Air resistance

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