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 done is maximum when angle between force and displacement is:

Question # 2

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

Question # 3

The commercial unit of electrical energy is :

Question # 4

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

Question # 5

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

Question # 6

Most of the geysers occur in:

Question # 7

Maximum work is done when force and displacement are

Question # 8

Which of the following is not a unit of power:

Question # 9

Work has a dimension as that of:

Question # 10

Tick the conservation force:

Question # 11

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

Question # 12

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

Question # 13

When a wall is pushed by a person very strongly, he has done:

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Tick the conservation force:
A. Tension in a string
B. Air resistance force
C. Elastic spring
D. Frictional force
2 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
3 When force and displacement are perpendicular to each other than work is equal to
A. Unity
B. Infinity
C. Zero
D. -Fd
4 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.
5 Work is a scalar product of
A. Force, Velocity
B. Velocity, Displacement
C. Force, Displacement
D. Force, Momentum
6 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:
A. +5 x 101J
B. +5 x 102J
C. +5 x 103J
D. +5 x 104J
7 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:
A. Minimum Work
B. Maximum Work
C. Zero Work
D. Negative Work
8 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
9 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
10 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

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