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

Which force is not a conservative force:

Question # 2

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

Question # 3

Work has the dimension as that of:

Question # 4

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

Question # 5

When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is

Question # 6

A body moves a distance of 10 m among a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which the force makes with the direction of motion of a body is:

Question # 7

If one newton force acts on a body and displaces the body through 1m work done on body is

Question # 8

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

Question # 9

Which force is not a conservative force?

Question # 10

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

Question # 11

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

Question # 12

If work is done at the rate of 2 k j per second, then total work done is half an hour will be:

Question # 13

The power of an electric generating station is expressed in:

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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
2 The power of an electric generating station is expressed in:
A. Kilo Jule
B. Kilowatt-hour
C. Kilo watt
D. Watt
3 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
4 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
5 When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is:
A. 2 J
B. 0.25 J
C. 1 J
D. 0.5 J
6 Which force is not a conservative force:
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
7 The field in which work done in moving a body between two points depends upon the path followed is called:
A. Conservative field
B. Non-conservative field
C. Electric field
D. None of these
8 When two protons are brought are brought closer potential energy of both of them:
A. Increases
B. Decreases
C. Remains same
D. None of these
9 The energy stored int he water of the dam is:
A. Electric energy
B. Kinetic energy
C. Potential energy
D. None of these
10 Work done on a body by gravity in lifting it up to certain height is
A. Maximum
B. Minimum
C. Zero
D. Negative

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