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

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 # 2

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

Question # 3

The space around the earth in which its gravitational force acts on a body is called

Question # 4

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

Question # 5

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 # 6

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

Question # 7

The value of escape velocity of Earth planet comes out to be:

Question # 8

Area under the force displacement graph gives

Question # 9

The work done moving a body between two points in a conservation field is independent of the:

Question # 10

Escape velocity from surface of Moon as compared to that from Earth surface is:

Question # 11

The work done on the body will be zero if:

Question # 12

Energy stored in the spring of a watch is called

Question # 13

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

Question # 14

1 J = ________?

Question # 15

When velocity of moving body is doubled, the quantity which is also doubled is its:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 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. 0.5 J
B. 2 J
C. 0.25 J
D. 1 J
2 The work done by a force, keeping an object in circular motion with constant speed is:
A. Zero J
B. 1 J
C. 0.1 J
D. 0.01 J
3 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:
A. +5 x 101J
B. +5 x 102J
C. +5 x 103J
D. +5 x 104J
4 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:`
A. Minimum work
B.
Maximum work
C. Zero work
D. Negative work
5 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
6 Work done is independent of path followed in _______
A. Gravitational field
B. Magnetic field
C. Electric field
D. All of these
7 A field in which the work done is moving a body along closed path is zero is called:
A. Nuclear filed
B. Conservative field
C. Gravitational field
D. Non-conservative field
8 Work is a:
A. Scalar quantity
B. Vector quantity
C. Base quantity
D. None of these
9 Which force is not a conservative force?
A. Frictional force
B. Gravitational force
C. Electric force
D. Elastic spring force
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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