Multiple choice

When temperature and density changes cause matter to move, this type of energy transfer occurs:

  1. polarization

  2. conduction

  3. convection

  4. radiation

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in density and temperature. Conduction requires contact, and radiation travels through space.