| A | B |
| Number of waves per second | frequency |
| sound is this type of wave | longitudinal |
| water and light waves are both | transverse |
| The loudnes of a sound wave depends on its | amplitude |
| the "height" from the middle of a wave to the top of crest ( peak) | amplitude |
| distance from peak of one wave to the next peak | wavelength |
| distance divided by time | speed |
| when a wave "bounces" off a barrier we call this | reflection |
| two waves passing through each other are said to | interfere |
| This is measured in Hertz | frequency |
| The frequency of a musical instrument is sometimes called its | pitch |
| Tghis name is given to sounds above the human hearing range | ultrasound |
| frwequency multilplied by wavelength | speed |
| light, radio, X rays are all EM waves, EM is short for | electromagnetic |
| low pitch means ? frequency | low |
| which travels faster in air Light or Sound? | light |
| distance divided by speed | time |
| speed divided by wavelength | frequency |
| the time taken to make one complete wave | period |
| when a wave goes from one medium to another we call this | diffraction |