ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 4 Work and Energy

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 4 Work and Energy

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ECAT Pre General Science Physics Chapter 4 Work and Energy

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Question # 1

The work performed on an object does not depend on

Question # 2

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

Question # 3

Work has the dimension as that of:

Question # 4

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 # 5

Work is a always done on a body when

Question # 6

Maximum work is done when force and displacement are

Question # 7

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

Question # 8

Which force is not a conservative force?

Question # 9

Watt x second is unit of:

Question # 10

Tick the conservation force:

Question # 11

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

Question # 12

The power of an electric generating station is expressed in:

Question # 13

The tidal energy is due to gravitational pull of :

Question # 14

When velocity of moving body is doubled, the quantity which is also doubled is its:

Question # 15

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

Question # 16

The Space around the Earth within which it exerts a force of attraction on other bodies is known as

Question # 17

Work has a dimension as that of:

Question # 18

Work done is maximum when angle between force and displacement is

Question # 19

The energy stored int he water of the dam is:

Question # 20

Work is a:

Question # 21

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

Question # 22

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 # 23

A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, Which makes an angle of 60° with the horizontal. The work done by the boy is:

Question # 24

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

Question # 25

Work-energy principle states that work done on the body by applied force is equal to change in:

Question # 26

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

Question # 27

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

Question # 28

Area under the force displacement graph gives

Question # 29

Energy stored in the spring of a watch is called

Question # 30

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The tidal energy is produced due to rotation of Earth relative to:
A. Moon
B. Sun
C. Oceans
D. Water
2 The work done in moving a body between two points in a conservation field is independent of the:
A. Direction
B. Force applied
C. Path followed by the body
D. Power
3 Power is a :
A. Vector quantity
B. Base quantity
C. Scalar quantity
D. None of these
4 Work done is lowering the bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
5 When a body 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
6 Work-energy principle states that work done on the body by applied force is equal to change in:
A. Potential energy
B. Kinetic nergy
C. Linear momentum
D. None of these
7 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
8 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
9 The tidal energy is due to gravitational pull of :
A. sun
B. moon
C. Mars
D. None of these
10 SI Unit of work is
A. Nm-1
B. Joule
C. Nms
D. Both a and b

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