| A | B |
|---|
| wave | a way of transferring energy from one place to another without matter being transformed |
| convex lens | a lens that focuses light |
| electromagnetic spectrum | the entire wavelength range of electromagnetic radiation |
| transverse waves | a wave in which the vibration is side to side or up and down |
| visible spectrum | the wavelength or frequency of light that can be seen including all of the colors of the rainbow |
| radio spectrum | the wave lengths use in communication including radio and television |
| amplitude | the height of waves as measured from the midline to the peak |
| pitch | the highness or lowness of a sound as determined by the wave frequency |
| medium | the matter through which energy waves travel |
| longitudinal waves | a wave in which the vibration is forward or backward |
