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

The work performed on an object does not depend on

Question # 2

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 # 3

The space around the earth within which it expects a force of attraction on other bodies is known as:

Question # 4

1 J = ________?

Question # 5

Which one is conservative force

Question # 6

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

Question # 7

Work has the dimensions as that of

Question # 8

The energy stored int he water of the dam is:

Question # 9

Work is a:

Question # 10

Work done is independent of path followed in _______

Question # 11

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

Question # 12

Tick the conservative force

Question # 13

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done is 25J. The angle which the force makes the direction of motion will be:

Question # 14

The unit of work in CGS system is

Question # 15

Energy stored in the spring of a watch is called

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Work done on a body by gravity in lifting it up to certain height is
A. Maximum
B. Minimum
C. Zero
D. Negative
2 In the force applied to parallel to the direction of motion, then the work done is:
A. Positive
B. Negative
C. Zero
D. None of these
3 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:
A. 0°
B. 30°
C. 60°
D. 90°
4 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
5 Area under the force displacement graph gives
A. Power
B. Work
C. Heat
D. Energy
6 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
7 In the force applied is parallel to the direction of motion, then work done is:
A. Maximum
B. Minimum
C. Zero
D. None of these
8 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
9 A solar cell converts energy of the Sun into:
A. Heat energy
B. Magnetic energy
C. Light energy
D. Sound energy
10 Work is 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 is correct

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