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

Tick the conservation force:

Question # 2

When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is:

Question # 3

The power of an electric generating station is expressed in:

Question # 4

Work-energy principle states that work done on the body by applied force is equal to change in:

Question # 5

Work is a:

Question # 6

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

Question # 7

When a wall is pushed by a person very strongly, he has done:

Question # 8

In the force applied is parallel to the direction of motion, then work done is:

Question # 9

Work is always done on a body when:

Question # 10

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:`

Question # 11

A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, Which makes an angle of 60° with the horizontal. The work done by the boy is:

Question # 12

Work is a:

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

The Space around the Earth within which it exerts a force of attraction on other bodies is known as

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The power of an electric generating station is expressed in:
A. Kilo Jule
B. Kilowatt-hour
C. Kilo watt
D. Watt
2 If force and displacement are in opposite direction, the work done is taken as
A. Positive work
B. Negative work
C. Zero work
D. Infinite work
3 The field in which work done in moving a body between two points depends upon the path followed is called:
A. Conservative field
B. Non-conservative field
C. Electric field
D. None of these
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 Work is a always done on a body when
A. A force acts on it
B. It moves through certain distance
C. None of A or B is correct
D. Both A and B are correct
6 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
7 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
8 Which of the following types of force can do no work on the particle on which it acts
A. Frictional force
B. Gravitational force
C. Electric force
D. Centripetal force
9 When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is:
A. 2 J
B. 0.25 J
C. 1 J
D. 0.5 J
10 Which of the following type of force can do no work on the particle on which it acts:
A. Frictional force
B. Gravitational force
C. Electric force
D. Centripetal force

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