| A | B |
|---|
| frequency | pitch |
| amplitude | volume |
| medium | material through which sound waves travel |
| wavelength | distance between adjacent sound waves |
| compression wave | region of space containing compressed air traveling at the speed of sound |
| rarefaction | region of space containing non-compressed air traveling at the speed of sound |
| transverse wave | a wave that oscillates the medium perpendicular to the waves direction |
| longitudinal wave | a wave that oscillates the medium parallel to the waves direction |
| constructive interference | when two sound waves meet at the same point causing their amplitudes to add |
| destructive interference | when two sound waves meet at the same point causing their amplitudes to cancel |
| dynamic range | the range of frequencies a given device can produce or percieve |
| sonic boom | the sound made when an object exceeds the speed of sound |
| wave speed | the distance a sound wave travels in a certain amount of time |
| reflection | when a sound wave bounces off an object and changes the direction it is traveling |
| infrasound | any frequency below 20 Hz |
| ultrasound | any frequency above 20,000 Hz |
| standing wave | a wave that does not travel in a given direction |
| traveling wave | a wave that travels in a given direction |
| acoustics | the science and technology of sound |
| decibals | the unit designated for the volume of sound |
| density | how compact a given amount of mass is |
| air composition | approximately 80% nitrogen and 19% oxygen |
| node | a point on a standing wave that does not move |
| anti-node | a point on a standing wave that moves up and down the most |
| stereo | when multiple speakers are used to represent the original sound |
| harmonic | a standing wave that has a frequency that is a multiple of the fundamental harmonic |
| fundamental harmonic | a standing wave that has the lowest possible frequency and the longest wavelength |
| transmitter | any device that emits a signal |
| reciever | any device that recieves signals from a transmitter |
| resonance | when the amplitude of an oscillation increases more and more |
