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 perpendicular distance between the axis of rotation and the line of action of the force is called the?

Inertia

Displacement

Moment Arm

Velocity

2 / 25

The no. of vibrations in unit time is called______:-

Frequency

Time period

Speed

None

3 / 25

If velocity of the body becomes double, then centripetal force will be:-

double

half

four times greater

three times greater

4 / 25

Venire calipers can be used to measure up to the accuracy of_____centimeters.

0.1

0.001

0001

0.01

5 / 25

The magnitude of induced emf depends upon the speed of:-

coil

relative motion

current

magnet

6 / 25

SI unit of pressure is pascal which is equal to:-

None of these

1/10² Nm-²

1 Nm-²

10² Nm-²

7 / 25

The change in frequency or wavelength of a wave in relation to observer who is moving relative to the wave source is called ………………

Wavelength

Doppler effect

Frequency

Time period

8 / 25

Which type of image is formed by a concave lens on a screen:-

invert and virtual

upright and real

upright and virtual

invert and real

9 / 25

Refractive Index of crown glass is …………….

1.51

2.5

3.5

10 / 25

The value of k in coulomb's law depends upon?

All of above

Magnitude of charges

Medium between two charges

Distance between charges

11 / 25

Near point of a man of 60 years is:-

100 cm

50 cm

500 cm

25 cm

12 / 25

Torque depends on:-

force and velocity

mass

force and moment arm

force

13 / 25

The speed of geostationary satellite with respect to earth is:-

zero

less

same

double

14 / 25

Least count of Metre Rod is__?

0.1 mm

1 mm

0.01 mm

1 cm

15 / 25

One of the basic property of all oscillatory systems is

None of these

The direction of velocity

The time period and frequency

The exchange of energy during motion

16 / 25

The force which bring back the body about mean position is called:-

Gravitational force

force of regulation

force of alteration

restoring force

17 / 25

Which rays are useful in cancer treatment?

Ultraviolet rays

Radio rays

Gamma rays

X-rays

18 / 25

Two vectors are at right angle then?

A×B=0

A+B=0

A.B=0

A-B=0

19 / 25

The reflection by a small surface is:-

none of these

both of these

irregular reflection

regular reflection

20 / 25

Which of the following changes when particle is moving with uniform velocity?

Velocity

Speed

Acceleration

Position Vector

21 / 25

More molecules of a liquid move with high velocities at?

Zero Temperature

Pressure

Higher Temperature

Lower Temperature

22 / 25

GUT stands for:-

Grand Universe theory

Grand United theory

Grand Unification theory

Grand United theorem

23 / 25

Gravitational acceleration for the bodies falling freely is__?

Negative

positive

Always equal to one a

Zero

24 / 25

To measure current, ammeter is connected in ____ in any circuit:-

None

Paralled

Anyway

Series

25 / 25

Mercury freezes at …………….temperature.

Your score is

The average score is 41%

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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