| A | B |
| temperature | measure of an average kinetic energy of all the particles in an object |
| thermal energy | sum of the kinetic and potential energy of the particles in an object; is transferred by conduction, convection, and radiation |
| heat | thermal energy that flows from a warmer material to a cooler material |
| conduction | transfer of thermal energy by collisions between particles in matter at a higher temperature and particles in matter at a lower temperature |
| convection | transfer of thermal energy in a fluid by the movement of warmer and cooler fluid from one place to another |
| radiation | transfer of thermal energy by electromagnetic waves |
| insulator | material in which electrons are not able to move easily |
| visible light | only part of the electromagnetic spectrum that humans can see |