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 ultimate source of money sources of energy is:

Question # 2

Work done along a closed path in a gravitational field is:

Question # 3

Teh consumption of energy by a 1000 watt heater in half an hour is:

Question # 4

The work done on the body will be zero if:

Question # 5

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

Question # 6

The total work done in moving the body up and then down through the same height in a gravitational field is equal to:

Question # 7

Which of the following types of force can do no work on the particle on which it acts

Question # 8

Work is a Quantity

Question # 9

Work is a scalar product of

Question # 10

Escape velocity from surface of Moon as compared to that from Earth surface is:

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 is 25J. the angle which the force makes with the direction of motion will be:

Question # 12

The dimensions of work

Question # 13

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

Question # 14

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

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 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
A. 60°
B. 90°
C. 30°
D. 0°
2 Work is a scalar product of
A. Force, Velocity
B. Velocity, Displacement
C. Force, Displacement
D. Force, Momentum
3 The ultimate source of money sources of energy is:
A. Sun
B. Air
C. Water
D. Petroleum
4 Work done along a closed path in a gravitational field is:
A. Maximum
B. Minimum
C. Zero
D. Unity
5 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 with the direction of motion will be:
A. 60°
B. 90°
C. 30°
D. 0°
6 A solar cell is made from:
A. Iron
B. Silicon
C. Germanium
D. Copper
7 The work done by a force, keeping an object in circular motion with constant speed is:
A. Zero J
B. 1 J
C. 0.1 J
D. 0.01 J
8 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
9 When velocity of moving body is doubled, the quantity which is also doubled is its:
A. K.E.
B. Acceleration
C. Momentum
D. P.E.
10 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these

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