| A | B |
| Wave | A disturbance that transmits energy through matter or space |
| Medium | A substance through which a wave can travel |
| Transverse wave | A wave in which the particles of the wave's medium vibrate perpendicularly to the direction the wave is traveling |
| Longitudinal wave | A wave in which the particle of the medium vibrate back and forth along the path that the wave travels |
| Amplitude | The maximum distance a wave vibrates from its rest position |
| Wavelength | The distance between one point on a wave and the corresponding point on an adjacent wave in a series of waves; for example, the distance between two adjacent crest or compressions |
| Frequency | The number of waves produced in a given amount of time |
| Wave Speed | The speed at which a wave travels |
| Reflection | The bouncing back of a wave after it strikes a barrier or an object |
| 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 | A wave interaction that occurs when two or more waves overlap |
| Standing wave | A wave that forms a stationary pattern in which portions of the wave do not move and other protion move with a large amplitude |
| Resonance | What occurs when an object vibrating at or near a resonant frequency of a second object causes the second object to vibrate |