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

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

Question # 2

The energy stored int he water of the dam is:

Question # 3

Area under the force displacement graph gives

Question # 4

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:

Question # 5

When two protons are brought are brought closer potential energy of both of them:

Question # 6

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

Question # 7

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

Question # 8

A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, Which makes an angle of 60° with the horizontal. The work done by the boy is:

Question # 9

Work is a scalar product of

Question # 10

The unit of work in CGS system is

Question # 11

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 # 12

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 # 13

Tick the conservation force:

Question # 14

Watt x second is unit of:

Question # 15

When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 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:
A. 1.25 J
B. 12.5 J
C. 125 J
D. None of these
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 The commercial unit of electrical energy is :
A. K Watt
B. KWH
C. Horse power
D. Joule
5 1 J = ________?
A. 107erges
B. 10-7erges
C. 105erges
D. 10-5erges
6 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
7 The unit of work in CGS system is
A. Joule
B. Erg
C. Dyne
D. Watt
8 The space around the earth in which its gravitational force acts on a body is called
A. Electric Field
B. Gravitational field
C. Magnetic field
D. Conservative field
9 The tidal energy is produced due to rotation of Earth relative to:
A. Moon
B. Sun
C. Oceans
D. Water
10 Which one is conservative force
A. Electric force
B. Frictional force
C. Normal force
D. Air resistance

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