ECAT Pre Engineering Physics Chapter 4 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 4 Work and Energy

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Physics ECAT Pre Engineering Chapter 4 Work and Energy

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Question # 1

If we draw a graph between d(along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis then area under this straight line represents:

Question # 2

The value of escape velocity of Earth planet comes out to be:

Question # 3

The work done on the body will be zero if:

Question # 4

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

Question # 5

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

Question # 6

A 100 kg car is moving at a speed of 10 m/sec and comes to rest after covering a distance of 50 m. the amount of work done against friction is:

Question # 7

The tidal energy is due to gravitational pull of :

Question # 8

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

Question # 9

Work is a

Question # 10

Escape velocity from surface of Moon as compared to that from Earth surface is:

Question # 11

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

Question # 12

The ultimate source of money sources of energy is:

Question # 13

Work is always done on a body when:

Question # 14

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

Question # 15

A body moves a distance of 10 m along a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which force makes with the direction of motion of a body is:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work is a always done on a body when
A. A force acts on it
B. It moves through certain distance
C. None of A or B is correct
D. Both A and B are correct
2 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
3 Tick the conservation force:
A. Tension in a string
B. Air resistance force
C. Elastic spring
D. Frictional force
4 The work done in moving a body between two points in a conservative field is independent of the
A. Direction
B. Force applied
C. Path followed by the body
D. Power
5 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
6 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
7 Work is always done on a body when:
A. A force acts on it
B. It moves through certain distance
C. None of A and B is correct
D. Both A and B is correct
8 Which force is not a conservative force:
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
9 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:
A. 1.25 J
B. 12.5 J
C. 125 J
D. None of these
10 Work is a scalar product of
A. Force, Velocity
B. Velocity, Displacement
C. Force, Displacement
D. Force, Momentum

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