ECAT Pre Computer Science Chapter 4 MCQ Test With Answer

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

Try The 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 is a scalar product of

Question # 2

A body moves a distance of 10 m among a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which the force makes with the direction of motion of a body is:

Question # 3

Work is always done on a body when:

Question # 4

The work performed on an object does not depend on

Question # 5

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

Question # 6

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

Question # 7

Energy stored in the spring of a watch is called

Question # 8

A solar cell converts energy of the Sun into:

Question # 9

When a wall is pushed by a person very strongly, he has done:

Question # 10

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

Question # 11

Work done is lowering the bucket into the well is:

Question # 12

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

Question # 13

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

Question # 14

Work is a Quantity

Question # 15

The work performed on an object does not depend on:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The field in which work done in moving a body between two points depends upon the path followed is called:
A. Conservative field
B. Non-conservative field
C. Electric field
D. None of these
2 Work done on a body by gravity in lifting it up to certain height is
A. Maximum
B. Minimum
C. Zero
D. Negative
3 Work has the dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
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:
A. 2 J
B. 0.25 J
C. 1 J
D. 0.5 J
5 The space around the earth within which it expects a force of attraction on other bodies is known as:
A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
6 The angle between centripetal force and displacement of the body moving in a circle is:
A. 0°
B. 90°
C. 180°
D. None of these
7 When two protons are brought are brought closer potential energy of both of them:
A. Increases
B. Decreases
C. Remains same
D. None of these
8 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
9 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
10 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

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