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

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 # 2

When a falling body hits ground, its KE changes to _____ energy.

Question # 3

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

Question # 4

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

Question # 5

1 J = ________?

Question # 6

Work is a Quantity

Question # 7

The energy stored int he water of the dam is:

Question # 8

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

Question # 9

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

Question # 10

Work done is independent of path followed in _______

Question # 11

The unit of work in CGS system is

Question # 12

Which one is conservative force

Question # 13

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

Question # 14

Work is always done on a body when:

Question # 15

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 the direction of motion will be:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 1 J = ________?
A. 107erges
B. 10-7erges
C. 105erges
D. 10-5erges
2 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
3 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
4 When force and displacement are perpendicular to each other than work is equal to
A. Unity
B. Infinity
C. Zero
D. -Fd
5 Work done along a closed path in a gravitational field is:
A. Maximum
B. Minimum
C. Zero
D. Unity
6 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:
A. Power
B. Work
C. Pressure
D. None of these
7 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force
8 Work is a
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
9 Work is a Quantity
A. Vector
B. Scalar
C. Non-physical
D. None of these
10 The unit of work in CGS system is
A. Joule
B. Erg
C. Dyne
D. Watt

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