| A | B |
|---|
| amplitude | the distance from the rest position to the crest or trough of a wave |
| conduction | energy transfer by particle collisions |
| conductor | material that conducts thermal energy (or electrical charges) well |
| convection | the transfer of thermal energy by mass movement of particles in a liquid or gas |
| fission | a nuclear reaction in which atomic nuclei split and release energy |
| frequency | the number of waves that pass a point in one second |
| fusion | a nuclear reaction in which small nuclei join together to form new nuclei |
| heat | an amount of thermal energy transferred from a warmer object to a cooler object |
| hertz | a unit of measurement for wave frequencies |
| insulator | a material that conducts thermal energy (or electricity) poorly |
| joule | a unit of measurement for energy and work |
| kinetic energy | the energy of motion |
| law of conservation of energy | the scientific law that states that energy cannot be created or destroyed |
| longitudinal wave | a wave in which particles move back and forth in the same direction as the wave travels |
| potential energy | stored energy |
| radiation | when a substance emits electromagnetic waves that carry energy |
| thermal equilibrium | when objects in contact are the same temperature |
| transverse wave | a wave in which particles move up and down or side to side at right angles (perpendicular) to the direction the wave travels |
| wave | a disturbance that transfers energy from one location to another |
| wavelength | the distrance between a point on one wave and the same point on the next wave |
