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

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

Question # 2

Work done along a closed path in a gravitational field is:

Question # 3

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 # 4

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

Question # 5

Which one is conservative force

Question # 6

The work performed on an object does not depend on:

Question # 7

Work is a always done on a body when

Question # 8

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

Question # 9

The energy stored int he water of the dam is:

Question # 10

Work has the dimension as that of:

Question # 11

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

Question # 12

Work is always done on a body when:

Question # 13

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

Question # 14

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

Question # 15

Power is a :

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The work done 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 A field in which the work done in moving a body along closed path is zero is called
A. Nuclear Field
B. Conservative field
C. Gravitational field
D. Non-conservative field
3 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
4 Work has the dimensions as that of
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
5 The work performed on an object does not depend on
A. Force applied
B. Angle at which force is inclined to the displacement
C. Initial velocity of the object
D. Displacement
6 1 J = ________?
A. 107erges
B. 10-7erges
C. 105erges
D. 10-5erges
7 When the body is moves against the force of friction on a horizontal plane, the work done by the body is:
A. Positive
B. Negative
C. Zero
D. None of these
8 If work is done at the rate of 2 k j per second, then total work done is half an hour will be:
A. 0.5 Kwn
B. 2 Kwh
C. 1 Kwh
D. None of these
9 The work performed on an object does not depend on:
A. Force applied
B. Angle at which force is inclined to the displacement
C. Initial velocity of the object
D. Displacement
10 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

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