Question

Which best describes how heat flows?

a
Heat flows from a cold object to a hot object and can cause an object's temperature to change.
b
Heat flows from a hot object to a cold object and can cause an object's temperature to change.
c
Heat flows from a cold object to a hot object but will not cause an object's temperature to change.
d
Heat flows from a hot object to a cold object but will not cause an object's temperature to change.

Answer 1

The correct answer is b - Heat flows from a hot object to a cold object and can cause an object's temperature to change. This is known as the Second Law of Thermodynamics. Heat always naturally flows from a warmer object to a cooler object until both objects reach equilibrium.