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 of the following is not a unit of power:

Question # 2

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

Question # 3

A solar cell is made from:

Question # 4

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

Question # 5

Energy stored in the spring of a watch is called

Question # 6

Work done is lowering the bucket into the well is:

Question # 7

The power of an electric generating station is expressed in:

Question # 8

Tick the conservative force

Question # 9

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

Question # 10

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

Question # 11

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:

Question # 12

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 the direction of motion will be:

Question # 13

When a wall is pushed by a person very strongly, he has done:

Question # 14

Teh consumption of energy by a 1000 watt heater in half an hour is:

Question # 15

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:`

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 The space around the earth within it exerts a force of attraction on other bodies of known as:
A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
3 The energy stored int he water of the dam is:
A. Electric energy
B. Kinetic energy
C. Potential energy
D. None of these
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:
A. Minimum Work
B. Maximum Work
C. Zero Work
D. Negative Work
5 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
6 Tick the conservation force:
A. Tension in a string
B. Air resistance force
C. Elastic spring
D. Frictional force
7 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
8 Work is a
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
9 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
10 Work has the dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power

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