ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 4 Work and Energy

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ECAT Pre General Science Physics Chapter 4 Work and Energy

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Question # 1

The amount of coal used since 1945 up till now as compared to that used in the whole of history before that is

Question # 2

Work is a always done on a body when

Question # 3

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 # 4

The energy stored int he water of the dam is:

Question # 5

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

Question # 6

Work is a:

Question # 7

Tick the conservation force:

Question # 8

A 100 Kg car is moving at the speed of 10 m/sec and comes to rest after covering a distance of 50 m. The amount of work done against the friction is:

Question # 9

Work done is lowering the bucket into the well is:

Question # 10

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

Question # 11

Work done along a closed path in a gravitational field is:

Question # 12

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 # 13

Work is a scalar product of

Question # 14

The Space around the Earth within which it exerts a force of attraction on other bodies is known as

Question # 15

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 # 16

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

Question # 17

Most of the geysers occur in:

Question # 18

Power is a :

Question # 19

The work done by a force, keeping an object in circular motion with constant speed is:

Question # 20

The tidal energy is produced due to rotation of Earth relative to:

Question # 21

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

Question # 22

The types of mechanical energy is/are:

Question # 23

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

Question # 24

The ultimate source of money sources of energy is:

Question # 25

The work done on the body will be zero if:

Question # 26

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

Question # 27

Work is product of:

Question # 28

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

Question # 29

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

Question # 30

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:

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ECAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
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:
A. Power
B. Work
C. Pressure
D. None of these
2 The types of mechanical energy is/are:
A. Kinetic energy
B. Potential energy
C. Both of these
D. None of these
3 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
4 When the body is moves against the force of friction on a horizontal plane, the work done by the body is:
A. Positive
B. Negative
C. Zero
D. None of these
5 If force and displacement are in opposite direction, the work done is taken as:
A. Positive work
B. Negative work
C. Zero work
D. Infinite work
6 Tick the conservation force:
A. Tension in a string
B. Air resistance force
C. Elastic spring
D. Frictional force
7 The commercial unit of electrical energy is :
A. K Watt
B. KWH
C. Horse power
D. Joule
8 A 2 kg block is held 1 m above floor for 50 seconds. The work done is:
A. Zero
B. 10.2 J
C. 100 J
D. 980 J
9 The ultimate source of money sources of energy is:
A. Sun
B. Air
C. Water
D. Petroleum
10 SI Unit of work is
A. Nm-1
B. Joule
C. Nms
D. Both a and b

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