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

SI Unit of work is

Question # 2

Work is a

Question # 3

Work done by the force of friction is always

Question # 4

Work is always done on a body when:

Question # 5

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

Question # 6

Work done is lowering the bucket into the well is:

Question # 7

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

Question # 8

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

Question # 9

A two Kg block is held 1 m above the floor for 50 seconds, the work done is:

Question # 10

The field in which work done is moving body between two points depends upon the path followed is called:

Question # 11

Work done is maximum when angle between force and displacement is

Question # 12

The work performed on an object does not depend on:

Question # 13

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

Question # 14

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

Question # 15

Work is a scalar product of

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force
2 If force and displacement are in opposite direction, the work done is taken as:
A. Positive work
B. Negative work
C. Zero work
D. Infinte work
3 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
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 Work has the dimensions as that of
A. Torque
B. Angular momentum
C. Linear momentum
D. Power
6 The work performed on an object does not depend on
A. Force applied
B. Angle at which force is inclined to the displacement
C. Initial velocity of the object
D. Displacement
7 The Space around the Earth within which it exerts a force of attraction on other bodies is known as
A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
8 1 J = ________?
A. 107erges
B. 10-7erges
C. 105erges
D. 10-5erges
9 The field in which work done is moving body between two points depends upon the path followed is called:
A. Conservative filed
B. Non-conservative field
C. Electric field
D. None of these
10 Work has the dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power

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