ECAT Pre General Science Physics Chapter 4 MCQ Test With Answer

Question # 1

The commercial unit of electrical energy is :

K Watt A
KWH B
Horse power C
Joule D

Question # 2

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

Positive A
Negative B
Zero C
None of these D

Question # 3

Work done in lower and bucket into the well is:

Zero A
Positive B
Negative C
None of these D

Question # 4

Which of the following is not a unit of power:

J-sec A
Watt B
N m/sec C
Horsepower D

Question # 5

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:

0° A
30° B
60° C
90° D

Question # 6

Work is always done on a body when:

A force acts on it A
It moves through certain distance B
None of A and B is correct C
Both A and B is correct D

Question # 7

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

Nuclear field A
Conservative field B
Electric field C
Gravitational field D

Question # 8

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

0° A
90° B
180° C
None of these D

Question # 9

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

Positive A
Negative B
Zero C
None of these D

Question # 10

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

Much more A
Very small B
No amount at all C
None of these D

Question # 11

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

Moon A
Sun B
Oceans C
Water D

Question # 12

Watt x second is unit of:

Force A
Work B
Power C
None of these D

Question # 13

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

Greater A
Smaller B
Equal C
None of thes D

Question # 14

A solar cell is made from:

Iron A
Silicon B
Germanium C
Copper D

Question # 15

Work is a scalar product of

Force, Velocity A
Velocity, Displacement B
Force, Displacement C
Force, Momentum D

Question # 16

The types of mechanical energy is/are:

Kinetic energy A
Potential energy B
Both of these C
None of these D

Question # 17

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:

+5 X 10¹J A
+5 X 10²J B
+5 X 10³J C
+5 X 10⁴J D

Question # 18

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

Maximum A
Minimum B
Zero C
Negative D

Question # 19

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

Electric Field A
Gravitational field B
Magnetic field C
Conservative field D

Question # 20

Work-energy principle states that work done on the body by applied force is equal to change in:

Potential energy A
Kinetic nergy B
Linear momentum C
None of these D

Question # 21

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

Nuclear Field A
Conservative field B
Gravitational field C
Non-conservative field D

Question # 22

Which of the following type of force can do no work on the particle on which it acts:

Frictional force A
Gravitational force B
Electric force C
Centripetal force D

Question # 23

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

Maximum work A
Zero work B
Positive work C
Negative work D

Question # 24

The consumption of energy by a 60 W bulb in 2 minutes is:

2 watt-hour A
120 watt-hour B
30 watt-hour C
None of these D

Question # 25

Tick the conservative force

Tension in a string A
Air resistance B
Elastic spring C
Frictional force D

Question # 26

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

0° A
90° B
180° C
None of these D

Question # 27

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

Positive work A
Negative work B
Zero work C
Infinite work D

Question # 28

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

Direction A
Force applied B
Path followed by the body ` C
Power D

Question # 29

Work is a:

Scalar quantity A
Vector quantity B
Base quantity C
None of these D

Question # 30

The tidal energy is due to gravitational pull of :

sun A
moon B
Mars C
None of these D

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	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:	A. 0° B. 30° C. 60° D. 90°
3	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
4	The work done in moving a body between two points in a conservation field is independent of the:	A. Direction B. Force applied C. Path followed by the body D. Power
5	Work done by the force of friction is always	A. Positive B. Zero C. Negative D. Maximum
6	A solar cell is made from:	A. Iron B. Silicon C. Germanium D. Copper
7	The value of escape velocity of Earth planet comes out to be:	A. 11 m/sec B. 11 km/sec C. 11 km/hour D. 11 cm/sec
8	The consumption of energy by a 60 W bulb in 2 minutes is:	A. 2 watt-hour B. 120 watt-hour C. 30 watt-hour D. None of these
9	1 J = ________?	A. 10⁷erges B. 10^-7erges C. 10⁵erges D. 10^-5erges
10	Work is a Quantity	A. Vector B. Scalar C. Non-physical D. None of these

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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

ECAT Pre General Science Physics Chapter 4 Work and Energy

The commercial unit of electrical energy is :

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

Work done in lower and bucket into the well is:

Which of the following is not a unit of power:

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:

Work is always done on a body when:

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

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

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

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

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

Watt x second is unit of:

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

A solar cell is made from:

Work is a scalar product of

The types of mechanical energy is/are:

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:

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

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

Work-energy principle states that work done on the body by applied force is equal to change in:

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

Which of the following type of force can do no work on the particle on which it acts:

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

The consumption of energy by a 60 W bulb in 2 minutes is:

Tick the conservative force

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

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

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

Work is a:

The tidal energy is due to gravitational pull of :

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