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 is a Quantity

Question # 2

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

Question # 3

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

Question # 4

Which force is not a conservative force:

Question # 5

Which one is conservative force

Question # 6

The types of mechanical energy is/are:

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

A two Kg block is held 1 m above the floor for 50 seconds, the work done is:

Question # 11

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 # 12

A solar cell is made from:

Question # 13

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

Question # 14

Which force is not a conservative force?

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 In the force applied to parallel to the direction of motion, then the work done is:
A. Positive
B. Negative
C. Zero
D. None of these
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 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
4 The energy stored int he water of the dam is:
A. Electric energy
B. Kinetic energy
C. Potential energy
D. None of these
5 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
6 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
7 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
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 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
10 Work is a Quantity
A. Vector
B. Scalar
C. Non-physical
D. None of these

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