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

Maximum work is done when force and displacement are

Question # 2

Work done is independent of path followed in _______

Question # 3

The unit of work in CGS system is

Question # 4

The work performed on an object does not depend on:

Question # 5

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

Question # 6

Energy stored in the spring of a watch is called

Question # 7

Work done on a body by gravity in lifting it up to certain height is

Question # 8

The commercial unit of electrical energy is :

Question # 9

The value of escape velocity of Earth planet comes out to be:

Question # 10

Work is a Quantity

Question # 11

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

Question # 12

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

Question # 13

Work done by the force of friction is always

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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:
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 a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is
A. 0.5 J
B. 2 J
C. 0.25 J
D. 1 J
4 Work done on a body by gravity in lifting it up to certain height is
A. Maximum
B. Minimum
C. Zero
D. Negative
5 Teh consumption of energy by a 1000 watt heater in half an hour is:
A. 5 Kwh
B. 0.5 Kwh
C. 2.5 Kwh
D. 3.2 Kwh
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 A labourer carrying a distance a load on his head moves from rest on a horizontal road to another point where he comes to rest. He has done:`
A. Minimum work
B.
Maximum work
C. Zero work
D. Negative work
8 A two Kg block is held 1 m above the floor for 50 seconds, the work done is:
A. Zero
B. 10.2 J
C. 100 J
D. 980 J
9 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:
A. 60°
B. 90°
C. 30°
D. 0°
10 Which of the following type of force can do no work on the particle on which it acts:
A. Frictional force
B. Gravitational force
C. Electric force
D. Centripetal force

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