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

Question # 2

The work done on the body will be zero if:

Question # 3

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

Question # 4

Work has the dimensions as that of

Question # 5

Work done is independent of path followed in _______

Question # 6

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 # 7

A solar cell converts energy of the Sun into:

Question # 8

A 100 kg car is moving at a speed of 10 m/sec and comes to rest after covering a distance of 50 m. the amount of work done against friction is:

Question # 9

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 # 10

Which force is not a conservative force?

Question # 11

The power of an electric generating station is expressed in:

Question # 12

When force and displacement are perpendicular to each other than work is equal to

Question # 13

The work performed on an object does not depend on:

Question # 14

SI Unit of work is

Question # 15

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:

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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 The space around the earth within it exerts a force of attraction on other bodies of known as:
A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
3 A solar cell converts energy of the Sun into:
A. Heat energy
B. Magnetic energy
C. Light energy
D. Sound energy
4 The space around the earth in which its gravitational force acts on a body is called
A. Electric Field
B. Gravitational field
C. Magnetic field
D. Conservative field
5 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
6 Work done is maximum when angle between force and displacement is:
A. 0°
B. 90°
C. 180°
D. None of these
7 Which force is not a conservative force?
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
8 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
9 A solar cell is made from:
A. Iron
B. Silicon
C. Germanium
D. Copper
10 Work has a dimension as that of:
A. Torque
B. Angular momentum
C. Linear momentum
D. Power

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