| A | B |
|---|
| wavelength | the distance from the top of one wave to the top of the next |
| frequency | the number of waves that pass a point in a second |
| intensity | the brightness of light |
| trough | the bottom of a wave |
| crest | the top of a wave |
| amplitude | the height of a wave |
| electromagnetic spectrum | the arrangement of types of radiant energy according to wavelengths and frequencies |
| radiant energy | energy that travels in waves |
| visible spectrum | visible light |
| ROY G. BIV | the colors of visible light |
| Gamma Rays | radiant energy with the highest frequency |
