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

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

Question # 2

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

Question # 3

Work has the dimensions as that of

Question # 4

Work is a

Question # 5

Work is always done on a body when:

Question # 6

Energy stored in the spring of a watch is called

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

Most of the geysers occur in:

Question # 11

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 # 12

The dimensions of work

Question # 13

The power of an electric generating station is expressed in:

Question # 14

A solar cell is made from:

Question # 15

Tick the conservation force:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
2 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
3 Which force is not a conservative force:
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
4 A two Kg block is held 1 m above the floor for 50 seconds, the work done is:
A. Zero
B. 10.2 J
C. 100 J
D. 980 J
5 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
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. Infinite work
7 The tidal energy is produced due to rotation of Earth relative to:
A. Moon
B. Sun
C. Oceans
D. Water
8 Which of the following types 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
9 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
10 Work done is lowering the bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these

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