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

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

Question # 2

Which one is conservative force

Question # 3

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

Question # 4

The tidal energy is due to gravitational pull of :

Question # 5

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

Question # 6

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

Question # 7

A 2 kg block is held 1 m above floor for 50 seconds. The work done is:

Question # 8

Work is a

Question # 9

The work performed on an object does not depend on:

Question # 10

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

Question # 11

A solar cell converts energy of the Sun into:

Question # 12

The work performed on an object does not depend on

Question # 13

Work is product of:

Question # 14

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:

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 The work done on the body will be zero if:
A. No force is applied on the body
B. Force is applied but no displacement
C. Angle between F(force) and d(displacement) is 90°
D. All of these are correct
3 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
4 The Space around the Earth within which it exerts a force of attraction on other bodies is known as
A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
5 Work has the dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
6 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
7 Most of the geysers occur in:
A. Volcanic regions
B. Magnetic regions
C. Northern region
D. None of these
8 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
9 Work is a
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
10 A 2 kg block is held 1 m above floor for 50 seconds. The work done is:
A. Zero
B. 10.2 J
C. 100 J
D. 980 J

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