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

Question # 2

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

Question # 3

The consumption of energy by a 60 W bulb in 2 minutes is:

Question # 4

Power is a :

Question # 5

Work is a scalar product of

Question # 6

The work done in moving a body between two points in a conservative field is independent of the

Question # 7

Which force is not a conservative force?

Question # 8

The unit of work in CGS system is

Question # 9

The commercial unit of electrical energy is :

Question # 10

When a body moves against the force of friction on a horizontal plane, the work done by the body is:

Question # 11

The tidal energy is produced due to rotation of Earth relative to:

Question # 12

Work done in lower and bucket into the well is:

Question # 13

Work is product of:

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
2 A solar cell converts energy of the Sun into:
A. Heat energy
B. Magnetic energy
C. Light energy
D. Sound energy
3 If force and displacement are in opposite direction, the work done is taken as:
A. Positive work
B. Negative work
C. Zero work
D. Infinite work
4 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
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 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
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 If one newton force acts on a body and displaces the body through 1m work done on body is
A. 1 dyne
B. 1 joule
C. 1KJ
D. 1 Watt
9 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
10 Area under the force displacement graph gives
A. Power
B. Work
C. Heat
D. Energy

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