| 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 |
| A phenomenon produced when an object is disturbed by a wave whose frequency is the same as the object’s natural frequency of vibration. | resonance |
| waves produced when two waves of the same frequency and amplitude travel in opposite directions through a medium | standing waves |
| points on a standing wave where total distructive interference produces points with zero amplitude | node |
| rapid changes* in the loudness (amplitude) of sounds resulting from the superposition of two sound waves having nearly identical frequencies. | beats |
| wave interference where the result is a smaller disturbance than either of the original waves. | destructive |
| the kind of wave interference that occurs when two waves 'interfere' with each other and the result is a larger disturbance than either of the original waves. | constructive |
| a region of constructive interference in a standing wave | antinode |
| the effect produced by two or more waves passing simultaneously through a point in a medium. | interference |
| the locus of adjacent points of the wave, which are in phase | wave front |
| the resultant interference when two waves have a phase difference of zero degrees | constructive |
| the resultant interference when two waves have a phase difference of 180 degrees | destructive |
