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

Question # 2

Work has the dimension as that of:

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done is 25J. The angle which the force makes the direction of motion will be:

Question # 7

Work done on a body by gravity in lifting it up to certain height is

Question # 8

1 J = ________?

Question # 9

The power of an electric generating station is expressed in:

Question # 10

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

Question # 11

Area under the force displacement graph gives

Question # 12

Most of the geysers occur in:

Question # 13

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

Question # 14

The work done on the body will be zero if:

Question # 15

The types of mechanical energy is/are:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The Space around the Earth within which it exerts a force of attraction on other bodies is known as
A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
2 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
3 Work done is lowering the bucket into the well is:
A. Zero
B. Positive
C. Negative
D. None of these
4 The tidal energy is produced due to rotation of Earth relative to:
A. Moon
B. Sun
C. Oceans
D. Water
5 Escape velocity from surface of Moon as compared to that from Earth surface is:
A. Greater
B. Smaller
C. Equal
D. None of thes
6 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
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 Most of the geysers occur in:
A. Volcanic regions
B. Magnetic regions
C. Northern region
D. None of these
9 Work done is maximum when angle between force and displacement is
A. 0°
B. 90°
C. 180°
D. None of these
10 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

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