If the temperature of an iron sphere is increased
A) its density will increase.
B) its volume will decrease.
C) its density will decrease.
D) its mass will decrease.
E) its density will remain unchanged.

Question

Quizplus · Accepted Answer

As an iron sphere is heated, its atoms vibrate more and take up more space, causing the sphere to expand. This increase in volume causes the density of the sphere to decrease because the mass of the sphere remains constant but its volume increases. Therefore, option C is correct.

If the Temperature of an Iron Sphere Is Increased