1. kinetic energy: energy of motion
2. potential energy: stored energy that depends upon an object's position
3. temperature: a measure of the average kinetic energy of particles
4. thermal energy: describes the total energy of a group of particles
5. heat: energy transferred within a substance or from one substance to another; always flows from a warmer area to a cooler area
6. energy transfer: energy transferred within a substance or from one substance to another; always flows from a warmer area to a cooler area
7. conduction: occurs when matter with higher kinetic or thermal energy interacts with matter that is lower in energy; energy moves from high to low
8. convection: transfer of thermal energy within a fluid due to temperature differences
9. convection current: a type of air current that develops as cooler and warmer particles move in a cycle
10. dense: how compact particles are
11. radiate: distribute heat in its surroundings