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

Work done in lower and bucket into the well is:

Question # 2

Work is product of:

Question # 3

Which one is conservative force

Question # 4

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

Question # 5

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

Question # 6

When a falling body hits ground, its KE changes to _____ energy.

Question # 7

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

Question # 8

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

Question # 9

Work done is maximum when angle between force and displacement is:

Question # 10

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

Question # 11

A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, which makes and angle of 60° with the horizontal. The work done by the boy is:

Question # 12

Work is a:

Question # 13

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 # 14

1 J = ________?

Question # 15

Which force is not a conservative force:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
2 If work is done at the rate of 2 k j per second, then total work done is half an hour will be:
A. 0.5 Kwn
B. 2 Kwh
C. 1 Kwh
D. None of these
3 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
4 If we draw a graph between d(along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis then area under this straight line represents:
A. Power
B. Work
C. Pressure
D. None of these
5 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
6 The power of an electric generating station is expressed in:
A. Kilo Jule
B. Kilowatt-hour
C. Kilo watt
D. Watt
7 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
8 Work is product of:
A. Force and velocity
B. Heat and energy
C. Force and displacement
D. None of these
9 When force and displacement are perpendicular to each other than work is equal to
A. Unity
B. Infinity
C. Zero
D. -Fd
10 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

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