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

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

Question # 2

A 100 kg car is moving at a speed of 10 m/sec and comes to rest after covering a distance of 50 m. the amount of work done against friction is:

Question # 3

Work done is independent of path followed in _______

Question # 4

Work done is lowering the bucket into the well is:

Question # 5

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

Question # 6

The dimensions of work

Question # 7

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

Question # 8

Most of the geysers occur in:

Question # 9

Tick the conservation force:

Question # 10

Maximum work is done when force and displacement are

Question # 11

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 # 12

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

Question # 13

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

Question # 14

Energy stored in the spring of a watch is called

Question # 15

SI Unit of work is

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work done along a closed path in a gravitational field is:
A. Maximum
B. Minimum
C. Zero
D. Unity
2 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
3 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
4 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
5 Watt x second is unit of:
A. Force
B. Work
C. Power
D. None of these
6 The work done by a force keeping an object in circular motion with constant speed is:
A. Zero J.
B. 0.1 J
C. 1 J
D. 0.01 J
7 The unit of work in CGS system is
A. Joule
B. Erg
C. Dyne
D. Watt
8 A body moves a distance of 10 m among a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which the force makes with the direction of motion of a body is:
A. 0°
B. 30°
C. 60°
D. 90°
9 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
10 The commercial unit of electrical energy is :
A. K Watt
B. KWH
C. Horse power
D. Joule

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