| A | B |
|---|
| emitted | goes out |
| absorbed | goes in |
| photon | packet of light energy |
| radiation energy | energy emitted as waves |
| quantum | a bundle |
| wavelength | a distance measurement in a wave |
| frequency | a measurement that tells you how often a wave goes by |
| visible light | the only part of the electromagnetic spectrum humans can see |
| vacuum | space that has no matter |
| direct relationship | relationship when one thing goes up so does the other |
| inverse relationship | relationship where one thing goes up and the other goes down |
| amplitude | measurement of how high a wave is |
| excited state | high energy state |
| ground state | low energy state |
