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Diffraction | The change in direction of a wave when it encounters ans obstacle or edge. |
Refraction | The bending of waves as they pass from one medium to another angle. |
Standing wave | A pattern of vibration that resembles a stationary wave. |
Reflection | The bouncing back of a wave when it meets a surface or boundary. |
Constructive interference | Interference that increases amplitude. |
Destructive interference | Interference that decreases amplitude. |
Principle of superposition | Method of adding crests and troughs of interfering waves together that describe a new wave. |
Beats | Sounds produced by the interference of sound waves that are used to tune piano strings. |
Interference | The combination of two of more waves that results in a signal wave. |
Nodes | Points in a standing wave that have no vibration. |
Sound | |
Pitch |