Two metal spheres are made of the same material and have the same diameter,but one is solid and the other is hollow.If their temperature is increased by the same amount,
A)the solid sphere becomes bigger than the hollow one.
B)the hollow sphere becomes bigger than the solid one.
C)the two spheres remain of equal size.
D)the solid sphere becomes denser and the hollow one less dense.
E)the solid sphere becomes less dense and the hollow one denser.

Question

Quizplus · Accepted Answer

Both spheres, being made of the same material and having the same diameter, will expand uniformly when their temperature is increased by the same amount. The fact that one is solid and the other is hollow does not affect the expansion rate, which depends on the material's coefficient of thermal expansion and the temperature change, not on the object's mass or density.

Two Metal Spheres Are Made of the Same Material and Have