ECAT Pre Computer Science Chapter 4 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 4 Work and Energy

Try The 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

The unit of work in CGS system is

Question # 2

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

Question # 3

A body moves a distance of 10 m along a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which force makes with the direction of motion of a body is:

Question # 4

A body moves a distance of 10 m among a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which the force makes with the direction of motion of a body is:

Question # 5

Most of the geysers occur in:

Question # 6

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

Question # 7

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

Question # 8

Which force is not a conservative force:

Question # 9

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

Question # 10

In the force applied is parallel to the direction of motion, then 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

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

Question # 13

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

Question # 14

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

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 A body moves a distance of 10 m among a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which the force makes with the direction of motion of a body is:
A. 0°
B. 30°
C. 60°
D. 90°
2 Work done by the force of friction is always
A. Positive
B. Zero
C. Negative
D. Maximum
3 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
4 The dimensions of work
A. [MLT-1]
B. [MLT-2]
C. [ML2T-2]
D. [MLT]
5 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
6 Which force is not a conservative force:
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
7 If work is done at the rate of 2 k j per second, then total work done is half an hour will be:
A. 0.5 Kwn
B. 2 Kwh
C. 1 Kwh
D. None of these
8 Work done is independent of path followed in _______
A. Gravitational field
B. Magnetic field
C. Electric field
D. All of these
9 The ultimate source of money sources of energy is:
A. Sun
B. Air
C. Water
D. Petroleum
10 Energy stored in the spring of a watch is called
A. Potential energy
B. Kinetic energy
C. Nuclear energy
D. Elastic potential

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