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

Work is a Quantity

Question # 2

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

Question # 3

Energy stored in the spring of a watch is called

Question # 4

Work is always done on a body when:

Question # 5

Work is a scalar product of

Question # 6

The work done on the body will be zero if:

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

In the force applied to parallel to the direction of motion, then the work done is:

Question # 11

Work done is independent of path followed in _______

Question # 12

The work done by a force, keeping an object in circular motion with constant speed is:

Question # 13

When velocity of moving body is doubled, the quantity which is also doubled is its:

Question # 14

A labourer carrying a distance a load on his head moves from rest on a horizontal road to another point where he comes to rest. He has done:`

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The types of mechanical energy is/are:
A. Kinetic energy
B. Potential energy
C. Both of these
D. None of these
2 Work has the dimensions as that of
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
3 Work is a Quantity
A. Vector
B. Scalar
C. Non-physical
D. None of these
4 The tidal energy is produced due to rotation of Earth relative to:
A. Moon
B. Sun
C. Oceans
D. Water
5 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
6 1 J = ________?
A. 107erges
B. 10-7erges
C. 105erges
D. 10-5erges
7 Which one is conservative force
A. Electric force
B. Frictional force
C. Normal force
D. Air resistance
8 A field in which the work done in moving a body along closed path is zero is called
A. Nuclear Field
B. Conservative field
C. Gravitational field
D. Non-conservative field
9 When the body is moves against the force of friction on a horizontal plane, the work done by the body is:
A. Positive
B. Negative
C. Zero
D. None of these
10 SI Unit of work is
A. Nm-1
B. Joule
C. Nms
D. Both a and b

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