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

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

Question # 2

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

Question # 3

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

Question # 4

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 # 5

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:`

Question # 6

If we draw a graph between d(along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis then area under this straight line represents:

Question # 7

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

Question # 8

The work done on the body will be zero if:

Question # 9

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

Question # 10

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

Question # 11

Work has the dimension as that of:

Question # 12

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

Question # 13

Work is always done on a body when:

Question # 14

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:

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 When velocity of moving body is doubled, the quantity which is also doubled is its:
A. K.E.
B. Acceleration
C. Momentum
D. P.E.
2 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
3 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
4 The work done in moving a body between two points in a conservation field is independent of the:
A. Direction
B. Force applied
C. Path followed by the body
D. Power
5 Which force is not a conservative force?
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
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 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force
8 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
9 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°
10 The angle between centripetal force and displacement of the body moving in a circle is:
A. 0°
B. 90°
C. 180°
D. None of these

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