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

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

Question # 2

Tick the conservative force

Question # 3

The ultimate source of money sources of energy is:

Question # 4

Power is a :

Question # 5

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

Question # 6

Energy stored in the spring of a watch is called

Question # 7

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

Question # 8

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:

Question # 9

Work done by the force of friction is always

Question # 10

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

Question # 11

Work is a

Question # 12

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

Question # 13

Which of the following types of force can do no work on the particle on which it acts

Question # 14

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

Question # 15

Work is a Quantity

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 Watt x second is unit of:
A. Force
B. Work
C. Power
D. None of these
4 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
5 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
6 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
7 Work has the dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
8 Power is a :
A. Vector quantity
B. Base quantity
C. Scalar quantity
D. None of these
9 In the force applied is parallel to the direction of motion, then work done is:
A. Maximum
B. Minimum
C. Zero
D. None of these
10 Maximum work is done when force and displacement are
A. Parallel
B. Antiparallel
C. Perpendicular
D. Both a and b

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