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 space around the earth in which its gravitational force acts on a body is called

Question # 2

A solar cell converts energy of the Sun into:

Question # 3

Which force is not a conservative force:

Question # 4

Work done is maximum when angle between force and displacement is:

Question # 5

The space around the earth within which it expects a force of attraction on other bodies is known as:

Question # 6

Work is a:

Question # 7

The ultimate source of money sources of energy is:

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

The work performed on an object does not depend on:

Question # 12

The tidal energy is due to gravitational pull of :

Question # 13

The energy stored int he water of the dam is:

Question # 14

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 # 15

Work done is independent of path followed in _______

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work done is lowering the bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
2 Power is a :
A. Vector quantity
B. Base quantity
C. Scalar quantity
D. None of these
3 The types of mechanical energy is/are:
A. Kinetic energy
B. Potential energy
C. Both of these
D. None of these
4 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
5 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force
6 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
7 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
8 A two Kg block is held 1 m above the floor for 50 seconds, the work done is:
A. Zero
B. 10.2 J
C. 100 J
D. 980 J
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 Watt x second is unit of:
A. Force
B. Work
C. Power
D. None of these

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