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

Work done is lowering the bucket into the well is:

Question # 2

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

Question # 3

The space around the earth within it exerts a force of attraction on other bodies of known as:

Question # 4

The amount of coal used since 1945 up till now as compared to that used in the whole of history before that is

Question # 5

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

Question # 6

The work performed on an object does not depend on:

Question # 7

Work has a dimension as that of:

Question # 8

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

Question # 9

Work done in lower and bucket into the well is:

Question # 10

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

Question # 11

Work done is independent of path followed in _______

Question # 12

Energy stored in the spring of a watch is called

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

If work is done at the rate of 2 k j per second, then total work done is half an hour will be:

Question # 15

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:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Teh consumption of energy by a 1000 watt heater in half an hour is:
A. 5 Kwh
B. 0.5 Kwh
C. 2.5 Kwh
D. 3.2 Kwh
2 The work done in moving a body between two points in a conservative field is independent of the
A. Direction
B. Force applied
C. Path followed by the body
D. Power
3 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
4 Maximum work is done when force and displacement are
A. Parallel
B. Antiparallel
C. Perpendicular
D. Both a and b
5 The power of an electric generating station is expressed in:
A. Kilo Jule
B. Kilowatt-hour
C. Kilo watt
D. Watt
6 The work done moving a body between two points in a conservation field is independent of the:
A. Direction
B. Force applied
C. Path followed by the body `
D. Power
7 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
8 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
9 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
10 The dimensions of work
A. [MLT-1]
B. [MLT-2]
C. [ML2T-2]
D. [MLT]

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