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

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

Question # 2

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

Question # 3

Work is product of:

Question # 4

The commercial unit of electrical energy is :

Question # 5

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 # 6

Which of the following is not a unit of power:

Question # 7

The Space around the Earth within which it exerts a force of attraction on other bodies is known as

Question # 8

Work has the dimensions as that of

Question # 9

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 # 10

Tick the conservation force:

Question # 11

If work is done at the rate of 2 k j per second, then total work done is half an hour will be:

Question # 12

Work done in lower and bucket into the well is:

Question # 13

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

Question # 14

Work done by the force of friction is always

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 Work is a scalar product of
A. Force, Velocity
B. Velocity, Displacement
C. Force, Displacement
D. Force, Momentum
4 Work is a
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
5 Which one is conservative force
A. Electric force
B. Frictional force
C. Normal force
D. Air resistance
6 The amount of coal used since 1945 up till now as compared to that used in the whole of history before that is
A. Much more
B. Very small
C. No amount at all
D. None of these
7 1 J = ________?
A. 107erges
B. 10-7erges
C. 105erges
D. 10-5erges
8 Watt x second is unit of:
A. Force
B. Work
C. Power
D. None of these
9 In the force applied to parallel to the direction of motion, then the work done is:
A. Positive
B. Negative
C. Zero
D. None of these
10 The unit of work in CGS system is
A. Joule
B. Erg
C. Dyne
D. Watt

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