The process in which a substance changes from a gaseous state to the liquid state is
a. absolute zero.
b. condensation.
c. critical temperature.
d. evaporation.

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Which of these is not a possible type of energy transformation? a. electrical energy into light energy b. sound energy into nuclear energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

Convection occurs when thermal energy is transferred by the movement of