Question

choose the correct answer. thermal contraction refers to what? as heat decreases, weight decreases. as heat decreases, mass decreases. as heat decreases, volume decreases.

Explanation:

Thermal contraction is a physical phenomenon. Weight is related to gravity (\(W = mg\), where \(m\) is mass and \(g\) is gravitational acceleration). Mass is an intrinsic property of matter and does not change with heat under normal circumstances. Volume, on the other hand, changes with temperature. When heat (temperature) decreases, the volume of most substances (except for some special cases like water in a certain temperature range) decreases, which is the essence of thermal contraction.

Answer:

As heat decreases, volume decreases.