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

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

Question # 2

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

Question # 3

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

Question # 4

The work performed on an object does not depend on:

Question # 5

A solar cell is made from:

Question # 6

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

Question # 7

Area under the force displacement graph gives

Question # 8

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

Question # 9

When two protons are brought are brought closer potential energy of both of them:

Question # 10

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

Question # 11

Work is always done on a body when:

Question # 12

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 # 13

Most of the geysers occur in:

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The total work done in moving the body up and then down through the same height in a gravitational field is equal to:
A. mgh
B. Its wight
C. Weight X height
D. Zero
2 The ultimate source of money sources of energy is:
A. Sun
B. Air
C. Water
D. Petroleum
3 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
4 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
5 If force and displacement are in opposite direction, the work done is taken as
A. Positive work
B. Negative work
C. Zero work
D. Infinite work
6 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
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 space around the earth within it exerts a force of attraction on other bodies of known as:
A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
9 The field in which work done in moving a body between two points depends upon the path followed is called:
A. Conservative field
B. Non-conservative field
C. Electric field
D. None of these
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:
A. +5 X 101J
B. +5 X 102J
C. +5 X 103J
D. +5 X 104J

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