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Lesson Plan: Thermal Expansion of Solids and Liquids Physics • 9th Grade

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to calculate the linear and volumetric expansion of solids and liquids due to change in their temperatures.

Objectives

Students will be able to

  • relate the change in temperature of a long, thin, solid object to the linear thermal expansion of the object using the equation Δ𝐿=𝛼𝐿Δ𝑇, where 𝛼 is the coefficient of linear thermal expansion,
  • relate the change in temperature of a solid object to the volumetric thermal expansion of the object using the equation Δ𝑉=𝛽𝑉Δ𝑇, where 𝛽 is the coefficient of volumetric thermal expansion,
  • describe qualitatively how interactions between particles in water affect the variation in density of water between a temperature of 0C and 4C.

Prerequisites

Students should already be familiar with

  • qualitative descriptions of interactions between particles in a liquid and in a solid.

Exclusions

Students will not cover

  • thermal expansion of gases.

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