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 always done on a body when:

Question # 2

Work done is maximum when angle between force and displacement is

Question # 3

SI Unit of work is

Question # 4

The dimensions of work

Question # 5

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

Question # 6

Work done along a closed path in a gravitational field is:

Question # 7

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

Question # 8

The work performed on an object does not depend on

Question # 9

Teh consumption of energy by a 1000 watt heater in half an hour is:

Question # 10

The work performed on an object does not depend on:

Question # 11

Work done on a body by gravity in lifting it up to certain height is

Question # 12

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

Question # 13

The commercial unit of electrical energy is :

Question # 14

The energy stored int he water of the dam is:

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 When a falling body hits ground, its KE changes to _____ energy.
A. Potential
B. Chemical
C. Mechanical
D. sound and heat
2 Which force is not a conservative force?
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
3 The energy stored int he water of the dam is:
A. Electric energy
B. Kinetic energy
C. Potential energy
D. None of these
4 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
5 The Space around the Earth within which it exerts a force of attraction on other bodies is known as
A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
6 The work done 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
7 The ultimate source of money sources of energy is:
A. Sun
B. Air
C. Water
D. Petroleum
8 The value of escape velocity of Earth planet comes out to be:
A. 11 m/sec
B. 11 km/sec
C. 11 km/hour
D. 11 cm/sec
9 Work is always done on a body when:
A. A force acts on it
B. It moves through certain distance
C. None of A and B is correct
D. Both A and B is correct
10 A laborer carrying a load on his head moves from the rest on a horizontal road to another point where he comes to rest. He has done:
A. Minimum Work
B. Maximum Work
C. Zero Work
D. Negative Work

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