| A | B |
|---|
| Reflection | wave interaction that occurs when a wave bounces back after striking a barrier |
| Echo | reflected sound wave |
| Refraction | the bending of a wave as it passes at an angle from one medium to another |
| Diffraction | the bending of waves around a barrier or through an opening |
| Interference | the result of two or more waves overlapping and occupying the same space at the same time |
| Constructive interference | when the crests and troughs of two waves overlap resulting in a wave with higher crests and deeper troughs than the original waves |
| Destructive interference | wave interaction that occurs when the crests of one wave and the troughs of another wave overlap, resulting in a smaller amplitude than the original waves |
| Total destructive interference | when two waves with the same amplitude combine by destructive interference and cancel each other out |
| Standing wave | a wave that forms a stationary pattern in which portions of the wave are at rest position due to total destruction interference and other portions have a large amplitude due to constructive interference |
| Resonant frequency | frequency at which standing waves are produced |
| Resonance | what occurs when an object vibrating at or near a resonant frequency of a second object causes the second object to vibrate |
