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 work performed on an object does not depend on:

Question # 2

Tick the conservation force:

Question # 3

1 J = ________?

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

The energy stored int he water of the dam is:

Question # 9

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 # 10

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

Question # 11

The work done on the body will be zero if:

Question # 12

Work done is lowering the bucket into the well is:

Question # 13

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

Question # 14

Work is a

Question # 15

Which one is conservative force

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work has the dimensions as that of
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
2 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
3 The value of escape velocity of Earth planet comes out to be:
A. 11 m/sec
B. 11 km/sec
C. 11 km/hour
D. 11 cm/sec
4 A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, which makes and angle of 60° with the horizontal. The work done by the boy is:
A. 1.25 J
B. 12.5 J
C. 125 J
D. None of these
5 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°
6 The Space around the Earth within which it exerts a force of attraction on other bodies is known as
A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
7 Work done is maximum when angle between force and displacement is
A. 0°
B. 90°
C. 180°
D. None of these
8 Which force is not a conservative force?
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
9 The commercial unit of electrical energy is :
A. K Watt
B. KWH
C. Horse power
D. Joule
10 Work is a
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these

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