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

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

Question # 2

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

Question # 3

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

Question # 4

Most of the geysers occur in:

Question # 5

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

Question # 6

Tick the conservative force

Question # 7

Work done is maximum when angle between force and displacement is

Question # 8

Area under the force displacement graph gives

Question # 9

Work is a Quantity

Question # 10

Work is a:

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

When velocity of moving body is doubled, the quantity which is also doubled is its:

Question # 13

Which of the following is not a unit of power:

Question # 14

The energy stored int he water of the dam is:

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work is 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 is correct
2 The field in which work done is moving body between two points depends upon the path followed is called:
A. Conservative filed
B. Non-conservative field
C. Electric field
D. None of these
3 Which of the following is not a unit of power:
A. J-sec
B. Watt
C. N m/sec
D. Horsepower
4 Which one is conservative force
A. Electric force
B. Frictional force
C. Normal force
D. Air resistance
5 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
6 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
7 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
8 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
9 The ultimate source of money sources of energy is:
A. Sun
B. Air
C. Water
D. Petroleum
10 A solar cell converts energy of the Sun into:
A. Heat energy
B. Magnetic energy
C. Light energy
D. Sound energy

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