| A | B |
|---|
| Crest | Top of a transverse wave |
| Trough | Bottom of a transverse wave |
| Wavelength | Distance between two adjacent crests |
| Origin | Midline of a wave |
| Amplitude | Height of a wave |
| Antinode | Part of a standing wave that has amplitude |
| Node | Part of a standing wave without amplitude |
| Wave Speed | How fast a single wave moves |
| Refraction | Waves bend when they enter a new medium |
| Diffraction | Waves bend around a surface |
| Reflection | Waves bounce off a surface |
| Frequency | How many waves pass a point every second |
| Period | Length of time needed for a wave to complete one cycle |
| Constructive Interference | Amplitudes build up |
| Destructive Interference | Amplitudes cancel out |
| Transverse | Waves with crests/troughs |
| Longitudinal | Waves with compressions/rarefactions |
| Compression | High pressure portion of longitudinal waves |
| Rarefaction | Low pressure portion of longitudinal waves |
| Oscillate | Back and forth motion |
| Hertz (Hz) | Units of Frequency (f) |
| In Phase | Wave patterns match |
| Out of Phase | Wave patterns do not match |
