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 tidal energy is due to gravitational pull of :

Question # 2

Work is a:

Question # 3

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

Question # 4

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

Question # 5

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

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

Power is a :

Question # 9

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

Question # 10

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

Question # 11

The work performed on an object does not depend on:

Question # 12

A solar cell converts energy of the Sun into:

Question # 13

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

Question # 14

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

Question # 15

Work is a:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 Work done by the force of friction is always
A. Positive
B. Zero
C. Negative
D. Maximum
3 Work has a dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
4 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
5 Most of the geysers occur in:
A. Volcanic regions
B. Magnetic regions
C. Northern region
D. None of these
6 Watt x second is unit of:
A. Force
B. Work
C. Power
D. None of these
7 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
8 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
9 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
10 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force

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