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

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

Question # 2

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

Question # 3

Work is a:

Question # 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:

Question # 5

1 J = ________?

Question # 6

Maximum work is done when force and displacement are

Question # 7

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

Question # 8

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 # 9

SI Unit of work is

Question # 10

The consumption of energy by a 60 W bulb in 2 minutes is:

Question # 11

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done is 25J. the angle which the force makes with the direction of motion will be:

Question # 12

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

Question # 13

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 # 14

Work done by the force of friction is always

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 Work is product of:
A. Force and velocity
B. Heat and energy
C. Force and displacement
D. None of these
2 When two protons are brought are brought closer potential energy of both of them:
A. Increases
B. Decreases
C. Remains same
D. None of these
3 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
4 The power of an electric generating station is expressed in:
A. Kilo Jule
B. Kilowatt-hour
C. Kilo watt
D. Watt
5 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
6 Work is a Quantity
A. Vector
B. Scalar
C. Non-physical
D. None of these
7 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
8 If one newton force acts on a body and displaces the body through 1m work done on body is
A. 1 dyne
B. 1 joule
C. 1KJ
D. 1 Watt
9 Watt x second is unit of:
A. Force
B. Work
C. Power
D. None of these
10 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:
A. 1.25 J
B. 12.5 J
C. 125 J
D. None of these

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