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

Question # 2

The types of mechanical energy is/are:

Question # 3

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

Question # 4

The total work done in moving the body up and then down through the same height in a gravitational field is equal to:

Question # 5

Work-energy principle states that work done on the body by applied force is equal to change in:

Question # 6

The space around the earth within which it expects a force of attraction on other bodies is known as:

Question # 7

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

Question # 8

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

Question # 9

Which force is not a conservative force:

Question # 10

Watt x second is unit of:

Question # 11

The space around the earth in which its gravitational force acts on a body is called

Question # 12

Work has the dimensions as that of

Question # 13

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

Question # 14

The field in which work done is moving body between two points depends upon the path followed is called:

Question # 15

Tick the conservative force

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The total work done in moving the body up and then down through the same height in a gravitational field is equal to:
A. mgh
B. Its wight
C. Weight X height
D. Zero
2 The ultimate source of money sources of energy is:
A. Sun
B. Air
C. Water
D. Petroleum
3 Area under the force displacement graph gives
A. Power
B. Work
C. Heat
D. Energy
4 Which of the following types 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 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
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 is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
8 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
9 Work has a dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
10 The work done on the body will be zero if:
A. No force is applied on the body
B. Force is applied but no displacement
C. Angle between F(force) and d(displacement) is 90°
D. All of these are correct

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