ECAT Pre Computer Science Chapter 4 MCQ Test With Answer

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

Power is a :

Question # 2

The energy stored int he water of the dam is:

Question # 3

The work performed on an object does not depend on

Question # 4

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 # 5

If force and displacement are in opposite direction, the work done is taken as:

Question # 6

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

Question # 7

The work performed on an object does not depend on:

Question # 8

Work is a scalar product of

Question # 9

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

Question # 10

Work is always done on a body when:

Question # 11

Work is a Quantity

Question # 12

Which one is conservative force

Question # 13

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

Question # 14

The commercial unit of electrical energy is :

Question # 15

Work has a dimension as that of:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work has a dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
2 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
3 The amount of coal used since 1945 up till now as compared to that used in the whole of history before that is
A. Much more
B. Very small
C. No amount at all
D. None of these
4 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
5 Work-energy principle states that work done on the body by applied force is equal to change in:
A. Potential energy
B. Kinetic nergy
C. Linear momentum
D. None of these
6 The tidal energy is produced due to rotation of Earth relative to:
A. Moon
B. Sun
C. Oceans
D. Water
7 Work done is lowering the bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
8 A solar cell is made from:
A. Iron
B. Silicon
C. Germanium
D. Copper
9 Work has the dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
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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