| pitch | | The process of something passing on; what wave energy undergoes within a medium. (11) |
| rarefaction | | The wave type in which propagation is by the particles of the medium oscillating in the same direction as the energy propagation. |
| propagation | | The letter/symbol used to represent frequency. |
| superposition | | The zone of a medium carrying a compression wave in which the particles of the medium are further apart than at equilibrium, with no wave energy passing through. (11) |
| tone | | The reciprocal of period; the number of oscillations per second of the particles of the medium due to the wave passing through. (9) |
| compression | | An everyday term for the mixture of frequencies in a given sound (4) |
| volume | | The "whoop-whoop" sound produced by the superposition of sound waves of very similar, but slightly different, frequencies. (5) |
| velocity | | The time it takes for one whole wavelength to pass through a point on/in the medium. (6) |
| medium | | The type of wave which travels at 300 million metres per second. (15) |
| echo | | The zone of a medium carrying a compression wave in which the particles of the medium are closer together than at equilibrium, with no wave energy passing through. (11) |
| crest | | The point of a medium carrying a transverse wave at which the particles of the medium has a maximum negative amplitude. (6) |
| amplitude | | The maximum displacement of particles of the medium from their equilibrium positions. (9) |
| lambda | | Another, more common, word, used in music, to indicate frequency. (5) |
| c | | The wave type in which propagation is by the particles of the medium oscillating at 90 degrees to the direction of energy propagation. (10) |
| electromagnetic | | The letter/symbol used to represent the speed of light. |
| f | | The distance that particles of the medium move from equilibrium as the wave energy passes (12) |
| longitudinal | | The Greek letter used to represent wavelength. |
| wavelength | | The substance through which a wave propagates. (6) |
| period | | The distance between any 2 immediately neighbouring particles of the medium that have the same speed AND direction of motion. (10) |
| mechanical | | The type of wave that requires a material medium to propagate it. (9) |
| v | | A sound term which is related to the amplitude of a sound wave. (6) |
| beats | | The adding of 2 or more wave energies of the same kind, travelling in the same medium. (13) |
| electromagnetic | | The type of wave which travels only through the vacuum of space or the vacuum between particles of a medium. (15) |
| displacement | | The letter/symbol used to represent velocity. |
| trough | | The point of a medium carrying a transverse wave at which the particles of the medium has a maximum positive amplitude. (5) |
| frequency | | The name given for the reflection of sound of walls, cliff faces, etc. (4) |
| transverse | | The speed and direction in which the wave energy is propagating. (8) |
