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Physics MCQs

127 Questions
Subject Preparation Guide

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

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The SI unit of viscosity is:

  • A Joule
  • B Watt
  • C Newton
  • D Pascal second
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The unit used to measure the loudness of sound is:

  • A Decibel
  • B Hertz
  • C Watt
  • D Newton
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Which law of thermodynamics states that heat naturally flows from a hotter body to a cooler body?

  • A First Law
  • B Zeroth Law
  • C Second Law
  • D Third Law
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Which kinetic theory explains that gas pressure results from molecular collisions with container walls?

  • A Boyle's Law
  • B Avogadro's Law
  • C Charles's Law
  • D Kinetic molecular theory
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Which experiment proved that the atom has a small dense positively charged nucleus?

  • A Rutherford's gold foil experiment
  • B Millikan's oil drop experiment
  • C Young's double slit experiment
  • D Michelson-Morley experiment
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Which law relates the pressure and volume of a gas at constant temperature?

  • A Charles's Law
  • B Boyle's Law
  • C Gay-Lussac's Law
  • D Avogadro's Law
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What causes the phenomenon of a rainbow?

  • A Refraction and dispersion of light
  • B Reflection of light
  • C Diffraction of light
  • D Polarization of light