Lesson Plan: Efficiency Physics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to calculate the efficiency of electrical devices given their useful energy output and total energy output.


Students will be able to

  • use 𝜂=𝐸𝐸usefultotal in all permutations,
  • use 𝜂=𝑃𝑃usefultotal in all permutations.


Students should already be familiar with

  • what energy is,
  • the idea that energy is transferred by different processes,
  • the idea that there are different categories of energy.


Students will not cover

  • non-energy efficiencies,
  • heat engines,
  • Carnot efficiency,
  • Sankey diagrams.

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