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

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

Question # 2

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:

Question # 3

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

Question # 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:

Question # 5

Which of the following is not a unit of power:

Question # 6

The work performed on an object does not depend on:

Question # 7

Work done by the force of friction is always

Question # 8

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

Question # 9

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

Question # 10

Work is a:

Question # 11

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

Question # 12

Area under the force displacement graph gives

Question # 13

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

Question # 14

1 J = ________?

Question # 15

Energy stored in the spring of a watch is called

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 Which force is not a conservative force?
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring 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 Work done is lowering the bucket into the well is:
A. Zero
B. Positive
C. Negative
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 Work done by the force of friction is always
A. Positive
B. Zero
C. Negative
D. Maximum
6 The tidal energy is due to gravitational pull of :
A. sun
B. moon
C. Mars
D. None of these
7 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
8 Work done on a body by gravity in lifting it up to certain height is
A. Maximum
B. Minimum
C. Zero
D. Negative
9 Work is a Quantity
A. Vector
B. Scalar
C. Non-physical
D. None of these
10 Work is always done on a body when:
A. A force acts on it
B. It moves through certain distance
C. None of A or B is correct
D. Both A and B is correct

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