ECAT Pre Engineering Physics Chapter 4 MCQ Test With Answer

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

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

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Physics ECAT Pre Engineering Chapter 4 Work and Energy

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Question # 1

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

Question # 2

The unit of work in CGS system is

Question # 3

When two protons are brought are brought closer potential energy of both of them:

Question # 4

The work performed on an object does not depend on:

Question # 5

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

Question # 6

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

Question # 7

A labourer carrying a distance a load on his head moves from rest on a horizontal road to another point where he comes to rest. He has done:`

Question # 8

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 # 9

Work is a:

Question # 10

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 # 11

Power is a :

Question # 12

Work has a dimension as that of:

Question # 13

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

Question # 14

Work has the dimension as that of:

Question # 15

Work done in lower and bucket into the well is:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 When a falling body hits ground, its KE changes to _____ energy.
A. Potential
B. Chemical
C. Mechanical
D. sound and heat
4 The unit of work in CGS system is
A. Joule
B. Erg
C. Dyne
D. Watt
5 Which of the following type of force can do no work on the particle on which it acts:
A. Frictional force
B. Gravitational force
C. Electric force
D. Centripetal force
6 The energy stored int he water of the dam is:
A. Electric energy
B. Kinetic energy
C. Potential energy
D. None of these
7 A field in which the work done in moving a body along closed path is zero is called
A. Nuclear Field
B. Conservative field
C. Gravitational field
D. Non-conservative field
8 The types of mechanical energy is/are:
A. Kinetic energy
B. Potential energy
C. Both of these
D. None of these
9 When a wall is pushed by a person very strongly, he has done:
A. Maximum work
B. Zero work
C. Positive work
D. Negative work
10 Which force is not a conservative force?
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force

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