Lesson Plan: Boyle’s Law Physics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to use the formula 𝑃𝑉 = constant (Boyle’s law) to calculate the pressure or volume of a gas that is allowed to expand or contract at a constant temperature.


Students will be able to

  • know that for an ideal gas at constant temperature, the pressure, 𝑃, of the gas is inversely proportional to the volume, 𝑉,
  • use 𝑃𝑉=𝑘, where 𝑘 is a constant, to determine the pressure or volume of a gas before or after a thermodynamic process that keeps the temperature constant,
  • understand diagrams that represent the particles of a gas and how Boyle’s Law can be shown using these diagrams.


Students should already be familiar with

  • pressure,
  • volume,
  • density,
  • temperature,
  • states of matter,
  • the idea that substances are made up of particles.


Students will not cover

  • Gay-Lussac’s law,
  • Charles’ law,
  • the ideal gas law,
  • the kinetic theory of gases,
  • internal energy,
  • entropy,
  • phase changes.

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