Physics
Grade-9
Easy
Question
The coefficient of thermal expansion of a material determines ____.
- The amount by which it bends on heating
- The amount by which it expands/contracts on changing temperature
- The pace at which it melts
- The pace at which it vaporizes
Hint:
The coefficient of thermal expansion is a material property that is indicative of the extent to which a material expands upon heating.
The correct answer is: The amount by which it expands/contracts on changing temperature
- The coefficient of thermal expansion (CTE) refers to the rate at which a material expands with increase in temperature. More specifically, this coefficient is determined at constant pressure and without a phase change, i.e. the material is expected to still be in its solid or fluid form.
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