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

When force and displacement are perpendicular to each other than work is equal to

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

Work is a:

Question # 6

Work is always done on a body when:

Question # 7

Work is a

Question # 8

Work done is independent of path followed in _______

Question # 9

Work is a Quantity

Question # 10

The unit of work in CGS system is

Question # 11

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

Question # 12

When velocity of moving body is doubled, the quantity which is also doubled is its:

Question # 13

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 # 14

The angle between centripetal force and displacement of the body moving in a circle is:

Question # 15

Work done is lowering the bucket into the well is:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 Which one is conservative force
A. Electric force
B. Frictional force
C. Normal force
D. Air resistance
3 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
4 When the body is 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
5 Watt x second is unit of:
A. Force
B. Work
C. Power
D. None of these
6 Work done is independent of path followed in _______
A. Gravitational field
B. Magnetic field
C. Electric field
D. All of these
7 The power of an electric generating station is expressed in:
A. Kilo Jule
B. Kilowatt-hour
C. Kilo watt
D. Watt
8 Work done on a body by gravity in lifting it up to certain height is
A. Maximum
B. Minimum
C. Zero
D. Negative
9 When velocity of moving body is doubled, the quantity which is also doubled is its:
A. K.E.
B. Acceleration
C. Momentum
D. P.E.
10 Work is always done on a body when:
A. A force acts on it
B. It moves through certain distance
C. None of A and B is correct
D. Both A and B is correct

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