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

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

Question # 2

Maximum work is done when force and displacement are

Question # 3

A solar cell converts energy of the Sun into:

Question # 4

Work done by the force of friction is always

Question # 5

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 # 6

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

Question # 7

Which of the following type of force can do no work on the particle on which it acts:

Question # 8

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done in 25J. The angle which the force makes with the direction of motion will be

Question # 9

Area under the force displacement graph gives

Question # 10

Work done is lowering the bucket into the well is:

Question # 11

The unit of work in CGS system is

Question # 12

Which of the following is not a unit of power:

Question # 13

The dimensions of work

Question # 14

Work has the dimensions as that of

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

The consumption of energy by a 60 W bulb in 2 minutes is:

Question # 20

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

Question # 21

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

Question # 22

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 # 23

Work is a

Question # 24

Work done is independent of path followed in _______

Question # 25

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done is 25J. The angle which the force makes the direction of motion will be:

Question # 26

A solar cell is made from:

Question # 27

The work performed on an object does not depend on

Question # 28

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

Question # 29

Most of the geysers occur in:

Question # 30

Tick the conservative force

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 Which one is conservative force
A. Electric force
B. Frictional force
C. Normal force
D. Air resistance
3 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
4 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:
A. Power
B. Work
C. Pressure
D. None of these
5 When velocity of moving body is doubled, the quantity which is also doubled is its:
A. K.E.
B. Acceleration
C. Momentum
D. P.E.
6 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
7 Which force is not a conservative force:
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
8 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
9 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
10 In the force applied is parallel to the direction of motion, then work done is:
A. Maximum
B. Minimum
C. Zero
D. None of these

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