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

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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

Work is always done on a body when:

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

Work is always done on a body when:

Question # 9

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

Question # 10

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 with the direction of motion will be:

Question # 11

Work done in lower and bucket into the well is:

Question # 12

Work is a Quantity

Question # 13

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 # 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

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

Question # 16

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

Question # 17

The work performed on an object does not depend on:

Question # 18

Work is a scalar product of

Question # 19

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

Question # 20

Watt x second is unit of:

Question # 21

Energy stored in the spring of a watch is called

Question # 22

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

Question # 23

The energy stored int he water of the dam is:

Question # 24

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

Question # 25

If work is done at the rate of 2 k j per second, then total work done is half an hour will be:

Question # 26

The ultimate source of money sources of energy is:

Question # 27

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 # 28

Which force is not a conservative force?

Question # 29

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 # 30

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 A body moves a distance of 10 m along a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which force makes with the direction of motion of a body is:
A. 0°
B. 30°
C. 60°
D. 90°
2 The tidal energy is produced due to rotation of Earth relative to:
A. Moon
B. Sun
C. Oceans
D. Water
3 Work done is independent of path followed in _______
A. Gravitational field
B. Magnetic field
C. Electric field
D. All of these
4 A solar cell converts energy of the Sun into:
A. Heat energy
B. Magnetic energy
C. Light energy
D. Sound energy
5 Teh consumption of energy by a 1000 watt heater in half an hour is:
A. 5 Kwh
B. 0.5 Kwh
C. 2.5 Kwh
D. 3.2 Kwh
6 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force
7 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
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 is 25J. the angle which the force makes with the direction of motion will be:
A. 60°
B. 90°
C. 30°
D. 0°
9 Most of the geysers occur in:
A. Volcanic regions
B. Magnetic regions
C. Northern region
D. None of these
10 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

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