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

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

Question # 2

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

Question # 3

Work is a always done on a body when

Question # 4

The tidal energy is produced due to rotation of Earth relative to:

Question # 5

Work has the dimensions as that of

Question # 6

Tick the conservation force:

Question # 7

Work done in lower and bucket into the well is:

Question # 8

Maximum work is done when force and displacement are

Question # 9

Work done is maximum when angle between force and displacement is:

Question # 10

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 # 11

The work performed on an object does not depend on

Question # 12

Which force is not a conservative force?

Question # 13

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

Question # 14

Work is a scalar product of

Question # 15

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:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 The work performed on an object does not depend on
A. Force applied
B. Angle at which force is inclined to the displacement
C. Initial velocity of the object
D. Displacement
3 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force
4 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
5 In the force applied is parallel to the direction of motion, then work done is:
A. Maximum
B. Minimum
C. Zero
D. None of these
6 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
7 Work done is maximum when angle between force and displacement is
A. 0°
B. 90°
C. 180°
D. None of these
8 The work done in 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
9 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
10 The field in which work done is moving body between two points depends upon the path followed is called:
A. Conservative filed
B. Non-conservative field
C. Electric field
D. None of these

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