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

Power is a :

Question # 2

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

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 one newton force acts on a body and displaces the body through 1m work done on body is

Question # 5

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

Question # 6

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

Question # 7

Work done in lower and bucket into the well is:

Question # 8

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

Question # 9

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:

Question # 10

Energy stored in the spring of a watch is called

Question # 11

Work done is maximum when angle between force and displacement is

Question # 12

Which one is conservative force

Question # 13

The work performed on an object does not depend on

Question # 14

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

Question # 15

Work is a Quantity

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 Area under the force displacement graph gives
A. Power
B. Work
C. Heat
D. Energy
3 Most of the geysers occur in:
A. Volcanic regions
B. Magnetic regions
C. Northern region
D. None of these
4 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
5 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
6 Work is product of:
A. Force and velocity
B. Heat and energy
C. Force and displacement
D. None of these
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
A. 0.5 J
B. 2 J
C. 0.25 J
D. 1 J
8 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
9 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
10 The power of an electric generating station is expressed in:
A. Kilo Jule
B. Kilowatt-hour
C. Kilo watt
D. Watt

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