# Lesson Plan: Power Mathematics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to find the power of a constant force using the relation 𝑃 = 𝐹 × 𝑣.

#### Objectives

Students will be able to

• understand that power is the rate at which a force does work,
• calculate the power being developed by a constant force with a known magnitude, , which is moving a body at a known velocity, ,
• generalize this to find the average power over a period of time,
• solve context problems involving power, force, acceleration, and velocity, including problems that include inclined planes and resistive forces.

#### Prerequisites

Students should already be familiar with

• resolving forces (including resistive forces),
• work,
• velocity,
• inclined planes,
• unit conversions such as
• 1 kg-wt = 9.8 N,
• ,
• .

#### Exclusions

Students will not cover

• variable forces defined by a function,
• problems involving integration,
• the vector form of ,
• defining the average power using integrals,
• differential notation.

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