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

1 J = ________?

Question # 2

The energy stored int he water of the dam is:

Question # 3

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

Question # 4

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

Question # 5

Work has the dimensions as that of

Question # 6

Work done by the force of friction is always

Question # 7

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

Question # 8

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

Question # 9

Most of the geysers occur in:

Question # 10

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

Question # 11

Work done is lowering the bucket into the well is:

Question # 12

Energy stored in the spring of a watch is called

Question # 13

Which one is conservative force

Question # 14

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:

Question # 15

Work done is maximum when angle between force and displacement 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 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
3 The work done by a force keeping an object in circular motion with constant speed is:
A. Zero J.
B. 0.1 J
C. 1 J
D. 0.01 J
4 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
5 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°
6 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
7 Work has the dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
8 1 J = ________?
A. 107erges
B. 10-7erges
C. 105erges
D. 10-5erges
9 The consumption of energy by a 60 W bulb in 2 minutes is:
A. 2 watt-hour
B. 120 watt-hour
C. 30 watt-hour
D. None of these
10 Tick the conservation force:
A. Tension in a string
B. Air resistance force
C. Elastic spring
D. Frictional force

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