ECAT Pre Computer Science Chapter 4 MCQ Test With Answer

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

Try The 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

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

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

1 J = ________?

Question # 7

The work performed on an object does not depend on:

Question # 8

The work performed on an object does not depend on

Question # 9

Work has a dimension as that of:

Question # 10

Which force is not a conservative force:

Question # 11

The value of escape velocity of Earth planet comes out to be:

Question # 12

The energy stored int he water of the dam is:

Question # 13

The work done by a force, keeping an object in circular motion with constant speed is:

Question # 14

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

Question # 15

Work done by the force of friction is always

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The work performed on an object does not depend on
A. Force applied
B. Angle at which force is inclined to the displacement
C. Initial velocity of the object
D. Displacement
2 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
3 1 J = ________?
A. 107erges
B. 10-7erges
C. 105erges
D. 10-5erges
4 Most of the geysers occur in:
A. Volcanic regions
B. Magnetic regions
C. Northern region
D. None of these
5 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
6 The field in which work done is moving body between two points depends upon the path followed is called:
A. Conservative filed
B. Non-conservative field
C. Electric field
D. None of these
7 The ultimate source of money sources of energy is:
A. Sun
B. Air
C. Water
D. Petroleum
8 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
9 A two Kg block is held 1 m above the floor for 50 seconds, the work done is:
A. Zero
B. 10.2 J
C. 100 J
D. 980 J
10 The work done by a force, keeping an object in circular motion with constant speed is:
A. Zero J
B. 1 J
C. 0.1 J
D. 0.01 J

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