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Physics MCQs

159 Questions
Subject Preparation Guide

Prepare Physics with confidence

Practice core concepts of measurement, motion, force, energy, waves, electricity, magnetism and modern physics.

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Easy ppsc Uploaded: 06 Aug 2026

Which type of circuit provides multiple paths for current to flow?

  • A Series circuit
  • B Open circuit
  • C Short circuit
  • D Parallel circuit
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Medium ppsc Uploaded: 17 Aug 2026

Echo is caused by the:

  • A Refraction of sound
  • B Diffraction of sound
  • C Interference of sound
  • D Reflection of sound
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Medium css fpsc ppsc Uploaded: 13 Jul 2026

Which law of thermodynamics states that energy cannot be created or destroyed only converted from one form to another?

  • A Zeroth Law
  • B Second Law
  • C Third Law
  • D First Law
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Medium ppsc Uploaded: 06 Aug 2026

What is the term for the energy carried by a photon proportional to its frequency?

  • A Kinetic energy
  • B Potential energy
  • C Photon energy
  • D Binding energy
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Medium css fpsc ppsc Uploaded: 13 Jul 2026

Which model of the atom describes electrons orbiting the nucleus in specific energy levels?

  • A Thomson's Plum Pudding model
  • B Rutherford's model
  • C Dalton's model
  • D Bohr's atomic model
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Medium fpsc ppsc nts Uploaded: 13 Jul 2026

What is meant by the term inertia in physics?

  • A The tendency of an object to resist changes in its state of motion
  • B The tendency of an object to accelerate
  • C The force of gravity on an object
  • D The energy stored in a moving object
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Easy ppsc Uploaded: 06 Aug 2026

What is the unit of frequency?

  • A Hertz
  • B Joule
  • C Watt
  • D Newton
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Medium ppsc Uploaded: 17 Aug 2026

The speed of sound in air at room temperature is approximately:

  • A 343 m/s
  • B 5000 m/s
  • C 3 x 10^8 m/s
  • D 1500 m/s
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Medium fpsc ppsc nts Uploaded: 13 Jul 2026

Which device converts electrical energy into mechanical energy?

  • A Generator
  • B Transformer
  • C Electric motor
  • D Capacitor
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Medium fpsc ppsc nts Uploaded: 13 Jul 2026

Which type of wave does not require a medium to travel?

  • A Sound wave
  • B Water wave
  • C Seismic wave
  • D Electromagnetic wave
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Medium fpsc ppsc nts Uploaded: 05 Aug 2026

Which device converts light energy directly into electrical energy using the photovoltaic effect?

  • A Generator
  • B Transformer
  • C Solar cell
  • D Battery
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Medium css fpsc ppsc Uploaded: 13 Jul 2026

What is the centripetal force?

  • A Force pushing an object outward in circular motion
  • B Force causing linear acceleration
  • C Force equal to mass times velocity
  • D Force directed toward the centre of circular motion
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Easy ppsc Uploaded: 17 Aug 2026

The working principle of an optical fiber is based on:

  • A Polarization
  • B Refraction
  • C Diffraction
  • D Total internal reflection
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Easy ppsc Uploaded: 17 Aug 2026

Absolute zero on the Kelvin scale corresponds to:

  • A 0 degrees Celsius
  • B -273.15 degrees Celsius
  • C 100 degrees Celsius
  • D -100 degrees Celsius
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Easy fpsc ppsc nts Uploaded: 13 Jul 2026

What is the speed of light in a vacuum?

  • A 3 x 10 to the power 6 m/s
  • B 3 x 10 to the power 10 m/s
  • C 3 x 10 to the power 4 m/s
  • D 3 x 10 to the power 8 m/s
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Easy ppsc Uploaded: 06 Aug 2026

What is the term for an object's tendency to maintain constant velocity unless acted upon?

  • A Momentum
  • B Torque
  • C Impulse
  • D Inertia
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Medium ppsc Uploaded: 17 Aug 2026

The phenomenon of bending of light around obstacles is called:

  • A Refraction
  • B Diffraction
  • C Reflection
  • D Dispersion
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Easy fpsc ppsc nts Uploaded: 13 Jul 2026

What type of lens is thicker at the centre than at the edges?

  • A Concave lens
  • B Plano-concave lens
  • C Biconcave lens
  • D Convex lens
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Medium ppsc Uploaded: 17 Aug 2026

A collision in which kinetic energy is not conserved is called:

  • A Inelastic collision
  • B Elastic collision
  • C Momentum collision
  • D Perfectly elastic collision
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Hard ppsc Uploaded: 06 Aug 2026

Which law states that the volume of a gas is directly proportional to its temperature at constant pressure?

  • A Charles's Law
  • B Boyle's Law
  • C Gay-Lussac's Law
  • D Avogadro's Law