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

Which one is conservative force

Question # 2

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

Question # 3

Work is a Quantity

Question # 4

A laborer carrying a load on his head moves from the rest on a horizontal road to another point where he comes to rest. He has done:

Question # 5

The types of mechanical energy is/are:

Question # 6

The commercial unit of electrical energy is :

Question # 7

The angle between centripetal force and displacement of the body moving in a circle is:

Question # 8

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

Question # 9

Most of the geysers occur in:

Question # 10

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 # 11

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

Question # 12

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

Question # 13

SI Unit of work is

Question # 14

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

Question # 15

Energy stored in the spring of a watch is called

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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. 2 J
B. 0.25 J
C. 1 J
D. 0.5 J
2 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°
3 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
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
A. 0.5 J
B. 2 J
C. 0.25 J
D. 1 J
5 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
6 A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done in 25J. The angle which the force makes with the direction of motion will be
A. 60°
B. 90°
C. 30°
D. 0°
7 The types of mechanical energy is/are:
A. Kinetic energy
B. Potential energy
C. Both of these
D. None of these
8 A 2 kg block is held 1 m above floor for 50 seconds. The work done is:
A. Zero
B. 10.2 J
C. 100 J
D. 980 J
9 When a body 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
10 Tick the conservation force:
A. Tension in a string
B. Air resistance force
C. Elastic spring
D. Frictional force

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