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

Work has a dimension as that of:

Question # 2

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

Question # 3

SI Unit of work is

Question # 4

Work is a always done on a body when

Question # 5

The work performed on an object does not depend on

Question # 6

The ultimate source of money sources of energy is:

Question # 7

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

Question # 8

Which force is not a conservative force:

Question # 9

The work done by a force keeping an object in circular motion with constant speed is:

Question # 10

Work is a

Question # 11

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

Question # 12

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 # 13

Work done by the force of friction is always

Question # 14

The work performed on an object does not depend on:

Question # 15

A field in which the work done is moving a body along closed path is zero is called:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force
3 Work done is maximum when angle between force and displacement is
A. 0°
B. 90°
C. 180°
D. None of these
4 The work done on the body will be zero if:
A. No force is applied on the body
B. Force is applied but no displacement
C. Angle between F(force) and d(displacement) is 90°
D. All of these are correct
5 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
6 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
7 Power is a :
A. Vector quantity
B. Base quantity
C. Scalar quantity
D. None of these
8 The unit of work in CGS system is
A. Joule
B. Erg
C. Dyne
D. Watt
9 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
10 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

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