Lesson Plan: Momentum Physics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to use the formula for momentum, 𝘱 = 𝑚𝑣, to calculate the momentum of objects and calculate changes in an object’s momentum.


Students will be able to

  • use the formula 𝑝=𝑚𝑣 in all combinations,
  • demonstrate that differences in velocity imply differences in momentum,
  • demonstrate that differences in mass imply differences in momentum,
  • explain that momenta of multiple objects can be summed to find their total momentum,
  • identify momentum as a vector quantity,
  • demonstrate that momenta in opposite directions have opposite signs when summed.


Students should already be familiar with

  • velocity.


Students will not cover

  • two-dimensional motion,
  • exchanges of momentum between objects (the summation of the momenta of two objects is included, while the transfer of this combined momentum between said objects is not),
  • forces.

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