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 is a:

Question # 2

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

Question # 3

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 # 4

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

Question # 5

Watt x second is unit of:

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

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 # 8

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

Question # 9

Work done is independent of path followed in _______

Question # 10

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

Question # 11

Energy stored in the spring of a watch is called

Question # 12

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

Question # 13

Which one is conservative force

Question # 14

The power of an electric generating station is expressed in:

Question # 15

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

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, Which makes an angle of 60° with the horizontal. The work done by the boy is:
A. 1.25 J
B. 12.5 J
C. 125 J
D. None of these
2 Work is always done on a body when:
A. A force acts on it
B. It moves through certain distance
C. None of A and B is correct
D. Both A and B is correct
3 Work done in lower and bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
4 The energy stored int he water of the dam is:
A. Electric energy
B. Kinetic energy
C. Potential energy
D. None of these
5 The amount of coal used since 1945 up till now as compared to that used in the whole of history before that is
A. Much more
B. Very small
C. No amount at all
D. None of these
6 Tick the conservative force
A. Tension in a string
B. Air resistance
C. Elastic spring
D. Frictional force
7 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.
8 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
9 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:
A. 1.25 J
B. 12.5 J
C. 125 J
D. None of these
10 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

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