Heating an object causes it to expand. The length of the square will increase equally along the x and y directions. Thus, its shape does not change.

A square is cut out of a copper sheet. The square is heated uniformly. As a result it turns into

a) a square with larger area

b) a square with smaller area

c) a rectangle with larger area

d) a rectangle with smaller area

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Thermal Expansion concept. You can view video lessons to learn Thermal Expansion. Or if you need more Thermal Expansion practice, you can also practice Thermal Expansion practice problems.