What happens to the Young's modulus of a material when it is heated?
Correct Answer: Young's modulus decreases
- Step 1: Understand what Young's modulus is. It is a measure of how stiff a material is.
- Step 2: Know that when a material is heated, its temperature increases.
- Step 3: Realize that heating a material causes its atoms to vibrate more.
- Step 4: Understand that increased atomic vibrations make it easier for the material to deform.
- Step 5: Conclude that because the material can deform more easily when heated, its Young's modulus decreases.
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