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Define linear, area, and volume expansion.

Question:

Define linear, area, and volume expansion.

Thermal Expansion


Thermal expansion is the change in the length, area or volume of the object due to the transfer of heat into it. There also exists a thermal coefficient to describe the proportionality of the expansion of the object. The expansion is due to the excited molecules of the object due to the increase in energy.

Answer and Explanation:

Thermal expansion is caused by the expansion of the object due to heat energy supplied to it.

Linear Expansion

  • Expansion of the length of the object due to heat

Area expansion

  • Expansion of the area covered by the object due to heat absorbed by the object

Volume expansion

  • Increased in the volume of the object upon the absorbance of heat.

Learn more about this topic:

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Thermal Expansion & Heat Transfer

from High School Physics: Help and Review

Chapter 17 / Lesson 12
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