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 field in which work done in moving a body between two points depends upon the path followed is called:

Question # 2

The work performed on an object does not depend on:

Question # 3

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

Question # 4

The work done on the body will be zero if:

Question # 5

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 # 6

Which force is not a conservative force?

Question # 7

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

Question # 8

The ultimate source of money sources of energy is:

Question # 9

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

Question # 10

A solar cell is made from:

Question # 11

The angle between centripetal force and displacement of the body moving in a circle is:

Question # 12

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:

Question # 13

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:

Question # 14

Work done is independent of path followed in _______

Question # 15

Work is a always done on a body when

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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 When a wall is pushed by a person very strongly, he has done:
A. Maximum work
B. Zero work
C. Positive work
D. Negative work
3 Work done on a body by gravity in lifting it up to certain height is
A. Maximum
B. Minimum
C. Zero
D. Negative
4 The ultimate source of money sources of energy is:
A. Sun
B. Air
C. Water
D. Petroleum
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. Infinte work
6 The total work done in moving the body up and then down through the same height in a gravitational field is equal to:
A. mgh
B. Its wight
C. Weight X height
D. Zero
7 A field in which the work done is moving a body along closed path is zero is called:
A. Nuclear filed
B. Conservative field
C. Gravitational field
D. Non-conservative field
8 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
9 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
10 Work has the dimensions as that of
A. Torque
B. Angular momentum
C. Linear momentum
D. Power

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