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 one is conservative force

Question # 2

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

Question # 3

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

Question # 4

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 # 5

The work done moving a body between two points in a conservation field is independent of the:

Question # 6

A solar cell converts energy of the Sun into:

Question # 7

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

Question # 8

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

Question # 9

When force and displacement are perpendicular to each other than work is equal to

Question # 10

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

Question # 11

Tick the conservation force:

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

When a falling body hits ground, its KE changes to _____ energy.

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
3 A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done in 25J. The angle which the force makes with the direction of motion will be
A. 60°
B. 90°
C. 30°
D. 0°
4 When a falling body hits ground, its KE changes to _____ energy.
A. Potential
B. Chemical
C. Mechanical
D. sound and heat
5 A field in which the work done is moving a body along closed path is zero is called:
A. Nuclear filed
B. Conservative field
C. Gravitational field
D. Non-conservative field
6 Work done by the force of friction is always
A. Positive
B. Zero
C. Negative
D. Maximum
7 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
8 A 2 kg block is held 1 m above floor for 50 seconds. The work done is:
A. Zero
B. 10.2 J
C. 100 J
D. 980 J
9 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
10 Work done on a body by gravity in lifting it up to certain height is
A. Maximum
B. Minimum
C. Zero
D. Negative

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