ECAT Pre Computer Science Chapter 4 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 4 Work and Energy

Try The 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 types of mechanical energy is/are:

Question # 2

Maximum work is done when force and displacement are

Question # 3

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

Question # 4

If force and displacement are in opposite direction, the work done is taken as:

Question # 5

Work done by the force of friction is always

Question # 6

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

Question # 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:

Question # 8

The work performed on an object does not depend on

Question # 9

The space around the earth within which it expects a force of attraction on other bodies is known as:

Question # 10

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

Question # 11

Which one is conservative force

Question # 12

Work done in lower and bucket into the well is:

Question # 13

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

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

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 In the force applied to parallel to the direction of motion, then the work done is:
A. Positive
B. Negative
C. Zero
D. None of these
2 The work done in moving a body between two points in a conservative field is independent of the
A. Direction
B. Force applied
C. Path followed by the body
D. Power
3 Work is product of:
A. Force and velocity
B. Heat and energy
C. Force and displacement
D. None of these
4 The space around the earth within which it expects a force of attraction on other bodies is known as:
A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
5 Which of the following type of force can do no work on the particle on which it acts:
A. Frictional force
B. Gravitational force
C. Electric force
D. Centripetal force
6 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
7 Which of the following is not a unit of power:
A. J-sec
B. Watt
C. N m/sec
D. Horsepower
8 The angle between centripetal force and displacement of the body moving in a circle is:
A. 0°
B. 90°
C. 180°
D. None of these
9 Which one is conservative force
A. Electric force
B. Frictional force
C. Normal force
D. Air resistance
10 A 100 Kg car is moving at the speed of 10 m/sec and comes to rest after covering a distance of 50 m. The amount of work done against the friction is:
A. +5 X 101J
B. +5 X 102J
C. +5 X 103J
D. +5 X 104J

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