Free Online Physics MCQs Practice

If you want t prepare Physics mcqs for passing initial tests of Army, Navy or PAF or any other competitive exams then here all past experiences have been shared which will help you to pass the physics mcqs tests easily. Moreover, these questions are basic which are very important for those who are applying for the jobs at matric level like Soldiers, Airman, Sailors or civilians tests of Army, navy or Pakistan Air Force.

Physics MCQs Quiz with Answers

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Physics Tests Quiz (Matric Level)

1 / 25

The rainbow is formed due to_______.

Dispersion

Diffraction

Refraction

Interference

2 / 25

Value of ‘g’ increases with the …………..

None

Decrease

Increase out

Increase in

3 / 25

Before converting the documents into electrical signals, it has to type on;-

both a , c

telex machine

fax machine

telephone

4 / 25

Radio waves are:-

all of them

electromagnetic waves

electrical signal

sound waves

5 / 25

The Newton's first law of motion is also called law of ________

Faraday's

Coulombs

Inertia

Ohm's

6 / 25

There are many hadith which indicate the importance of learning and:-

earning

knowledge

sightseeing

thinking

7 / 25

When a positive charge of 2C is placed at a point in an electric field, it experiences a force of 6N, The intensity of electric field at this point is:-

12 NC-1

6 NC-1

1.5 NC-1

3 NC-1

8 / 25

________ Physics is the branch of physics in which we study about the atom and its structure.

Electromegnatics

Atomic

Nuclear

Plasma

9 / 25

If the distance between all pairs of particles of the body do not change by applying a force then the body is said to be?

Flexible

Rigid

large

Small

10 / 25

Speed of γ-rays as compared to speed of light is:-

greater

one to 10%

equal

one to 99%

11 / 25

An apparatus for reducing or increasing the voltage of an alternating current is called __________.

Capacitor

Resistor

Transformer

Voltmeter

12 / 25

A string is stretched by two equal and opposite forces 10 N each. The tension in the string is:-

5 N

20 N

10 N

13 / 25

The study of the structure and properties of matter is called?

Mechanics

Atomic Physics

Plasma physics

Geophysics

14 / 25

Least count screw gauge is:-

0.1 mm

0.01 cm

0.01 mm

0.1 cm

15 / 25

Racing cars are made stable by?

Decreasing their width

Increasing their Speed

Decreasing their Mass

Lowering their center of gravity

16 / 25

Overtones produced by a closed end organ pipe are

3f, 5f, 7f, ……..

f, 3f, 5f,…….

f, 2f, 3f, ……..

2f, 3f, 4f, ……..

17 / 25

If both inputs A and B are zero then what will be the output c:-

either of these

none of these

18 / 25

Electromagnetic induction was discovered by:-

Newton

Einstein

Faraday

Galileo

19 / 25

The motion of a simple pendulum is________.

Simple

Uniformly accelerated

Rotational

Translational

20 / 25

If the range of a projectile is R, then its K.E is maximum after covering a distance equal to:-

3R/ 4

R / 2

R / 4

21 / 25

In absence of an electric field, the motion of free electron is:-

random

vibratory

circular

directed

22 / 25

10⁹ is equal to __-- giga:-

23 / 25

The instrument use to measure the blood pressure is :

Venture Meter

Stethoscope

Barometer

Sphygmomano-meter

24 / 25

Open canal of ear terminates at:-

cochlea

eardrum

middle ear

inner ear

25 / 25

In centripetal force F = ____?

None

Your score is

The average score is 36%

More Physics MCQs Online Free Solved

Mechanics : Physics MCQs

The SI unit of force is:
- a) Newton
- b) Joule
- c) Watt
- d) Pascal
- Answer: a)
The rate of change of velocity is called:
- a) Acceleration
- b) Speed
- c) Displacement
- d) Momentum
- Answer: a)
A body of mass 10 kg is moving with a velocity of 2 m/s. Its kinetic energy is:
- a) 10 J
- b) 20 J
- c) 40 J
- d) 80 J
- Answer: b)
The principle of conservation of momentum states that:
- a) Momentum can be created or destroyed
- b) Momentum remains constant in an isolated system
- c) Momentum is directly proportional to velocity
- d) Momentum is inversely proportional to mass
- Answer: b)
The pressure exerted by a force of 20 N on an area of 5 m² is:
- a) 4 Pa
- b) 5 Pa
- c) 10 Pa
- d) 20 Pa
- Answer: a)

Heat and Temperature : Physics MCQs

The SI unit of temperature is:
- a) Celsius
- b) Fahrenheit
- c) Kelvin
- d) Calorie
- Answer: c)
The process of conversion of a liquid into a gas is called:
- a) Evaporation
- b) Condensation
- c) Sublimation
- d) Freezing
- Answer: a)
Specific heat capacity of a substance is the amount of heat required to raise the temperature of:
- a) 1 kg of the substance by 1°C
- b) 1 g of the substance by 1°C
- c) 1 kg of water by 1°C
- d) 1 g of water by 1°C
- Answer: a)

Light : Physics MCQs

The phenomenon of bending of light as it passes from one medium to another is called:
- a) Reflection
- b) Refraction
- c) Diffraction
- d) Dispersion
- Answer: b)
The image formed by a plane mirror is:

a) Real and inverted
b) Virtual and inverted
c) Real and erect
d) Virtual and erect
Answer: d)

Sound : Physics MCQs

The speed of sound in air is approximately:

a) 340 m/s
b) 300 m/s
c) 250 m/s
d) 200 m/s
Answer: a)

The unit of frequency is:

a) Hertz
b) Decibel
c) Meter
d) Second
Answer: a)

Electricity : Physics MCQs

The SI unit of electric current is:

a) Volt
b) Ampere
c) Ohm
d) Watt
Answer: b)

Ohm’s law states that:

a) Current is directly proportional to voltage
b) Current is inversely proportional to voltage
c) Voltage is directly proportional to resistance
d) Resistance is inversely proportional to current
Answer: a)

The device used to measure electric current is called:

a) Voltmeter
b) Ammeter
c) Ohmmeter
d) Galvanometer
Answer: b)

Magnetism : Physics MCQs

The magnetic field lines around a bar magnet are:

a) Straight lines
b) Circular
c) Curved lines
d) Parallel lines
Answer: c)

The north pole of a magnet attracts the:

a) North pole of another magnet
b) South pole of another magnet
c) Both north and south poles of another magnet
d) None of the above
Answer: b)

Modern Physics : Physics MCQs

The phenomenon of emission of electrons from a metal surface when light of suitable frequency falls on it is called:

a) Photoelectric effect
b) Compton effect
c) Pair production
d) Nuclear fission
Answer: a)

Radioactivity is the process of:

a) Emission of alpha, beta, and gamma rays
b) Emission of only alpha rays
c) Emission of only beta rays
d) Emission of only gamma rays
Answer: a)

The nucleus of an atom consists of:

a) Protons only
b) Neutrons only
c) Protons and neutrons
d) Electrons and protons
Answer: c)

Related: How to Join Pak Army?

What is the SI unit of force?

A) Joule
B) Newton
C) Watt
D) Pascal
Answer: B) Newton

Which law states that for every action, there is an equal and opposite reaction?

A) Newton’s First Law
B) Newton’s Second Law
C) Newton’s Third Law
D) Law of Gravitation
Answer: C) Newton’s Third Law

What is the speed of light in a vacuum?

A) 3×10⁶ m/s
B) 3×10⁷ m/s
C) 3×10⁸ m/s
D) 3×10⁹ m/s
Answer: C) 3×10⁸ m/s

Which quantity remains constant in an isolated system?

A) Mass
B) Energy
C) Velocity
D) Momentum
Answer: B) Energy

What is the unit of electric current?

A) Volt
B) Ohm
C) Ampere
D) Watt
Answer: C) Ampere

Who is known as the father of modern physics?

A) Isaac Newton
B) Albert Einstein
C) Galileo Galilei
D) Nikola Tesla
Answer: B) Albert Einstein

Which type of mirror is used in car rearview mirrors?

A) Plane mirror
B) Concave mirror
C) Convex mirror
D) Spherical mirror
Answer: C) Convex mirror

What is the acceleration due to gravity on the Earth’s surface?

A) 7.8 m/s²
B) 8.8 m/s²
C) 9.8 m/s²
D) 10.8 m/s²
Answer: C) 9.8 m/s²

What is the phenomenon of splitting of light into its component colors called?

A) Reflection
B) Refraction
C) Dispersion
D) Diffraction
Answer: C) Dispersion

What device is used to measure electric current?

A) Voltmeter
B) Galvanometer
C) Ammeter
D) Barometer
Answer: C) Ammeter

What is the basic unit of electric charge?

A) Coulomb
B) Ampere
C) Volt
D) Farad
Answer: A) Coulomb

Who formulated the theory of relativity?

A) James Clerk Maxwell
B) Albert Einstein
C) Niels Bohr
D) Werner Heisenberg
Answer: B) Albert Einstein

What is the main constituent of the Sun?

A) Hydrogen
B) Oxygen
C) Nitrogen
D) Helium
Answer: A) Hydrogen

What is the SI unit of work?

A) Joule
B) Newton
C) Watt
D) Pascal
Answer: A) Joule

Which of the following is a vector quantity?

A) Mass
B) Speed
C) Velocity
D) Temperature
Answer: C) Velocity

What is the formula for calculating kinetic energy?

A) KE=1/2mv²
B) KE=mv
C) KE=mg
D) KE=mgh
Answer: A) KE=12mv²

Which law explains why we feel a backward push when a bus starts suddenly?

A) Newton’s First Law
B) Newton’s Second Law
C) Newton’s Third Law
D) Hooke’s Law
Answer: A) Newton’s First Law

In an electric circuit, what is the role of a resistor?

A) Increases current
B) Stores energy
C) Reduces current
D) Converts AC to DC
Answer: C) Reduces current

What type of energy is stored in a stretched spring?

A) Kinetic energy
B) Potential energy
C) Thermal energy
D) Sound energy
Answer: B) Potential energy

Who discovered the electron?

A) Isaac Newton
B) Albert Einstein
C) J.J. Thomson
D) Rutherford
Answer: C) J.J. Thomson

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