PAF Physics tests mcqs for officers and airman

PAF Physics MCQs Tests with Answers

PAF Physics MCQs have main role in the selection of the PAF jobs of officers, airman, or civilian. It includes all past experiences of GDP, Admin branch, Logistic Branch, Met Branch, Aerotrade, Security, Medical branch, Sportsman, and Civilians tests. If you are worried about PAF initial tests of physics then learn all the given questions by heart. It will give you 100 % pass results. For more learning about physics tests check the links given at the end of the page.

  • Diamond is an electrical __________ . (Insulator)
  • Both electrons and holes serve as charge carriers when silicon is subjected to a __________ . (Potential difference)
  • A semiconductor is formed by __________  bond. (Covalent)
  • The most commonly used semiconductor is __________ . (Silicon)
  • A semiconductor generally has __________ valence electrons. (4)
  • When a pure semiconductor is heated, its resistance __________ . (Goes down)
  • When a pentavalent impurity is added to a pure semiconductor, it becomes __________ . (N-type semiconductor)
  • Addition of pentavalent impurity to a semiconductor creates many _________. (Free electrons)
  • The number of valence electrons in a pentavalent impurity is __________ . (5)
  • An n-type semiconductor is __________ . (Electrically neutral)
  • A trivalent impurity has __________  valence electrons.  (3)
  • Addition of trivalent impurity to a semiconductor creates many __________. (Holes)
  • As the doping of a pure semiconductor increases, the bulk resistance of the semiconductor __________ . (Decreases)
  • In a semiconductor, current conduction is due to __________ . (Holes and free electrons)
  • In the depletion region of a pn junction, there is a shortage of __________ . (Holes and electrons)

PAF Physics MCQs Tests Free Online

PAF Physics MCQs for Aerotrade are available.

  • Distance is  a __________  quantity. (Scalar)
  • The SI unit of electric current is __________ . (Ampere)
  • The formula for calculating speed is __________. (Speed = Distance ÷ Time)
  • The force that opposes the motion of an object is called __________ . (Frictional force)
  • Solar energy is an example of a __________  source of energy. (Non-conventional)
  • The phenomenon of bending of light when it passes from one medium to another is known as __________ . (Refraction)
  • __________  law states that “Every action has an equal and opposite reaction”(Newton’s Third Law)
  • The unit of power is __________ . (Watt)
  • __________  is the SI unit of force. (Newton)
  • In a parallel circuit, the voltage across each resistor is __________ . (Equal)
  • __________ serves as the fundamental measurement. (Mass)
  • The SI system comprises __________ base units. (7)
  • A force of ten N forms a 30° angle with the horizontal. Its horizontal component amounts to __________ . (8.7N)
  • Kilogram is a __________  unit. (Base)
  • The volume equivalent to one liter is __________.  (1000 cm³)
  • The Vernier Caliper has a least count of __________ . (0.01 cm)
  • In __________  state molecules maintain their positions. (Solid)
  • One megameter is equivalent to __________ . (10⁶ m)
  • The scientific discipline that investigates the internal structure of the Earth is known as __________ . (Geophysics)
  • An interval of 200 µs can be expressed as __________ . (2 x 10⁻⁴s)
  • A ball is thrown vertically upward, its velocity at the highest point is__________ . (Zero )
  • The motion of a body about an axis is called_____________.(Rotational Motion )

PAF Physics MCQs of Airman Free Past Experience

PAF Physics MCQs are given here for

  • A body has translatory motion if it moves along a__________ . (Line without rotation )
  • By dividing displacement of a moving body with time, we obtain______. (Velocity )
  • Displacement is  a _______  quantity. (Vector)
  • The motion of a body in a straight line is ________. (Linear Motion )
  • A type of motion in which a body moves about its own axis is called_________. (Rotatory Motion)
  • A car is moving at a speed of 10 ms-¹. Its speed in Kmh-¹ will be________.(36 Kmh-¹ )
  • A train is moving at a speed of 36 Kmh-¹. Its speed expressed in ms-¹ will be_____ . (10ms-¹)
  • Brownian motion is an example of__________ .( Random Motion)
  • Change in position from point A to B with a short interval of time is called__________ . (Displacement)
  • A change in position in the proper direction is called______ . (Displacement)
  • The number of perpendicular components of a force is______ . (2)
  • The motion of insects is called__________ . (Random Motion)
  • The to and fro motion of a body about its mean position is called__________ . (Vibratory motion)
  • The product of mass and velocity of a body is called ___________. (Momentum)
  • A string is stretched by two equal and opposite forces 10N each. The tension in the string is ___________. (10N)
  • The unit of momentum is ___________. (Ns)
  • Newton’s first law of motion is valid only in the absence of ___________. (Friction)
  • __________  lowers friction when pushed between metal plates. (Oil)
  • Inertia depends upon ___________. (Mass)
  • The coefficient of friction µs between the tyre and wet roads is ___________. (0.2)
  • Coefficient of friction between tyre and dry road is _____.(1)
  • One Newton is equal to ___________. (Kgms-²)
  • A Train is moving at a speed of 36 kmh-¹. Its speed expressed in ms-¹ is________. (10ms-¹)
  • Centripetal force always acts ________ to the motion of the body. (Perpendicular)
  • Rate of change of momentum is called _________. (Force)

Aerotrade PAF Physics MCQs for Free Preparation

  • The product of a body’s mass and velocity is known as _______. (Momentum)
  • When a string is subjected to two equal and opposite forces of 10N each, the resulting tension in the string is _______. (10N)
  • In an isolated system, the momentum following the collision of two bodies remains ___________.  (Constant)
  • The term denoting the rate of change of momentum is _________. (Force)
  • At a height of Earth’s radius above the surface, the value of “g” is __________ . (¼ g)
  • Earth’s gravitational force becomes negligible at __________. (Infinity)
  • The time taken by the Moon to complete one revolution around the Earth is____. (27.3 days)
  • The orbital speed of a satellite in low orbit is __________. (8 km/s)
  • The value of “g” on the Moon is __________. (1.6 m/s²)
  • A force that varies inversely with the square of the distance between the centers of bodies is __________ . (Gravitational force)
  • The center of gravity of an irregularly shaped body can be determined using _____ . (Plumbline)
  • The value of “g” increases with __________ . (Decrease in altitude)
  • On the moon’s surface, where the value of “g” is 1.6 m/s², the weight of a 100 kg body would be __________ . (160 N)
  • The processes through which heat transfer occurs are characterized by a temperature of __________ . (90°)
  • The energy expended in raising a brick with a mass of 2 kg to a height of 5 mm above the ground will amount to __________ . (100 J)
  • __________  converts light energy into electrical energy. (Photo-cell)
  • If the kinetic energy of a 2 kg mass is 25 J, its speed is __________ . (5 m/s)
  • In Einstein’s mass-energy equation, the symbol C represents the __________ . (Speed of light)
  • If a machine performs 10 joules of work in 5 seconds, its power will be __________ . (2 W)
  • The term denoting the rate at which work is done is referred to as __________ . (Power)
  • The energy stored in water held by a dam is classified as __________ . (Potential energy)
  • When the force acts perpendicular to the direction of motion of a body, the work done will be __________ . (Zero)
  • When a body is raised to a height h, the work done on it is transformed into its__________ . (Potential energy)
  • The number of perpendicular components of a force is __________ .(2)
  • The SI unit of pressure is the Pascal, equivalent to __________ .(1 Nm⁻²)
  • The length of a glass tube to assemble a water barometer is __________ .(1 m)
  • __________  is the lightest substance. (Aluminum)
  • In __________  state  molecules not shift from their positions. (Solid)

PAF Physics MCQs for Aero-trade, MTD, and Medical Tests

If you want to prepare PAF Physics MCQs for MTD, and Medical tests then learn these tests.

  • The term for the fourth state of matter is ______ . (Plasma)
  • From the options provided, __________ substance is the lightest. (Aluminum)
  • The approximate length required for a glass tube to construct a water barometer is __________ . (11 m)
  • The term denoting the rate at which work is done is called __________ .(Power)
  • If a particle is moving in a circular path of radius r and undergoes a displacement of half a circle,  its displacement will be __________ . (2r)
  • The term used to describe the path length covered by a body in a given time interval is _____. (Distance)
  • Velocity is defined as _____ per unit of time. (Displacement)
  • In the case of a body moving in a straight line, it exhibits uniform motion if it covers _____ distance in equal time intervals. (Equal)
  • Consider a scenario where a boy is moving with a uniform velocity of 10 m/s on a merry-go-round ride. In this context, the boy is moving with __________ velocity. (Constant)
  • In a distance-time graph,  slope represent __________ . (Speed)
  • In a velocity-time graph, the slope represent __________ . (Acceleration)
  • The physical quantity characterized by both magnitude and direction is known as _____ . (Vectors)
  • Wood, cork, cotton, wool, rubber are exemplars of __________. (Insulator)
  • ____________ from the sun constitutes a major source of energy on Earth. (Radiation)
  • On hot days, cold air from the sea begins to move towards the land __________ . (Sea breeze)
  • A black, dull surface is a proficient ________ of heat. (Absorber)
  • The Earth’s temperature is __________ .(300k)
  • The quantity of heat absorbed by a body depends on the __________ .(Color of the surface, nature of the surface)
  • Land breeze moves from land to sea during __________ .(Night)
  • Leslie’s cube is a box made of __________ .(Metal)
  • Heat reflected from the body depends on __________ .(Color and form)
  • __________  is a characteristic of simple harmonic motion (SHM). (Constant acceleration)
  • In simple harmonic motion, the restoring force is __________ . (Proportional to displacement)
  • The time period of a simple harmonic motion is the time taken to complete ___ . (One full cycle)
  • The amplitude of a simple harmonic motion is _____ . (The maximum displacement from the mean position)
  • In simple harmonic motion, the maximum displacement from the mean position is called __________ .(Amplitude)
  • The angular frequency (ω) in simple harmonic motion is related to the frequency (f) by the equation __________ . (ω=2πf)
  • If the amplitude of a simple harmonic motion is doubled, the energy of the system will __________ . (Quadruple)
  • The restoring force in simple harmonic motion is always directed __________ . (Opposite to the direction of displacement)
  • The total mechanical energy of a particle in simple harmonic motion __________ . (Remains constant)

Past Experiences of PAF Physics MCQs of Aero-trade

Past experience of PAF Physics MCQs are available for full preparation of initial tests which are mostly repeated.

  • Sound is a__________ type of wave. (Longitudinal)
  • The speed of sound in air is approximately __________ . (343 m/s)
  • Property of sound determines its pitch is __________ .(Frequency)
  • The unit of frequency is __________ . (Hertz (Hz))
  • The reflection of sound is called __________ . (Echo)
  • The part of the ear responsible for balancing the body is the __________ . (Inner ear)
  • An increase in temperature generally leads to an increase in the speed of sound. This relationship is due to __________ . (Absorption)
  • The loudness of a sound is related to its __________ . (Amplitude)
  • __________ is a better conductor of sound. (Water)
  • The phenomenon of interference is most commonly associated with __________ .(Beats)
  • The bending of light when it passes from one medium to another is known as __________ .(Refraction)
  • The point where all incident light rays parallel to the principal axis converge or appear to diverge is called the __________ .(Principal focus)
  • In a concave mirror, the focal length is considered positive when the focus is __________ .(Real and in front of the mirror)
  • The phenomenon of splitting white light into its constituent colors is known as __________ .(Dispersion)
  • The lens that converges light is called a __________ .(Convex lens)
  • The bending of light around the corners of an obstacle or aperture is known as __________ .(Diffraction)
  • The point where a diverging beam of light or backward extension of refracted rays appears to converge is called the __________ .(Focus)
  • When an object is placed between the focus and the optical center of a convex lens, the image formed is __________ .(Virtual and erect)
  • The speed of light is maximum in __________ .(Vacuum)
  • If a charged object loses electrons, it becomes __________ .(Positively charged)
  • The phenomenon of attracting small, neutral objects towards a charged body is called __________ .(Attraction)
  • When a glass rod is rubbed with silk, the glass rod becomes __________ .(Positively charged)
  • __________ is the same as electric potential energy. (Electric potential)
  • The capacitance of a capacitor depends on __________ .(The area of the plates, The distance between the plates, The material between the plates)
  • If the charge on a capacitor is doubled, and the potential difference across it remains constant, then the capacitance __________ . (Remains the same)
  • The electric field lines for a positive point charge __________ .(Radiate outwards)
  • _________  is a good conductor of electricity.(Copper)
  • When a charged body is brought near an uncharged conductor, the charges in the conductor __________ . (Move towards the charged body)
  • SI unit of electric current is __________ .(Ampere)
  • In a conductor, the drift velocity of electrons is directly proportional to __________ . (Electric field strength)
  • The relationship between potential difference (V), current(I), and resistance (R) is given by __________ . (I=V/R)
  • A resistor is connected in series with a circuit, the total resistance in the circuit __________ . (Increase)
  • The effect of increasing the length of a wire on its resistance is __________ . (Increase)
  • The instrument used to measure electric current is __________ . (Ammeter)
  • The symbol ‘I’ represents __________ .(Current)
  • In a parallel circuit, the voltage across each resistor is __________ . (Same)
  • The role of a fuse in an electrical circuit is __________ . (To break the circuit in the case of excess current)
  • The resistance of a conductor depends on __________ .(Its length, its cross sectional area, the material it is made of)

Most Repeated PAF Physics MCQs for Airman Tests

Most repeated PAF Physics MCQs are available for full preparation in initial tests.

  • The phenomenon of electromagnetic induction was first discovered by __________ .(Michael Faraday)
  • The magnetic field inside a solenoid is __________ .(Parallel to the axis of the solenoid)
  • The device used to change the voltage of an alternating current is called a __________ . (Transformer)
  • Fleming’s left-hand rule is used to determine the direction of __________ . (Force on a current-carrying conductor in a magnetic field)
  • The unit of magnetic flux is __________ . (Weber)
  • When a current-carrying wire is placed in a magnetic field, it experiences a force. This principle is known as __________ . (Fleming’s right-hand rule)
  • The strength of an electromagnet can be increased by __________ . (Increasing the current through the coil)
  • The direction of the induced current in a coil can be reversed by __________ . (Changing the orientation of the coil)
  • The function of a commutator in a DC motor is __________ . (To change the direction of current)
  • Lenz’s law states that the direction of the induced current is such that it opposes the __________ . (Change in magnetic flux)
  • In an NPN transistor, the majority charge carriers are __________ . (Electrons)
  • The process of combining multiple semiconductor materials to create a device with specific electronic properties is known as __________ . (Fabrication)
  • A diode is commonly used for __________ . (Rectification)
  • The basic building block of digital circuits is the __________ . (Transistor)
  • The binary system in digital electronics uses __________ . (Base-2)
  • The purpose of a capacitor in an electronic circuit is __________ .(To store and release electrical energy)
  • In a resistor color code, the color gold represents __________. (0.1)
  • An integrated circuit (IC) is a combination of __________ . (Multiple electronic components on a single chip)
  • Ohm’s Law relates __________ . (Voltage, current, and resistance)
  • A device that amplifies or increases the strength of an electronic signal is called __________ . (Amplifier)
  • The acronym “ICT” stand for __________ . (Information and Communication Technology)
  • __________ is a primary function of an operating system. (File management)
  • The software that enables users to interact with the computer using a graphical interface is called __________ . (System software)
  • The purpose of a firewall in computer networks is __________. (To prevent unauthorized access to a network)
  • The protocol used for transferring files over the internet is __________ . (FTP)
  • __________  device is known for its fast data access but is volatile (loses data when power is turned off)  (Random Access Memory (RAM))
  • The function of an application software is __________ . (To perform specific tasks for the user)
  • The process of converting analog signals into digital signals is called __________ .(Analog-to-digital conversion)
  • __________ is an example of cloud computing service. (Google Drive)
  • The term “URL” stand for __________ . (Uniform Resource Locator)

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