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waveclick to hear

Oscillation caused by a disturbance; as it propagates through a medium (mechanical waves) or a vacuum (electromagnetic waves), it carries energy.
wave mean position wavelength displacement crest trough amplitude propagation

mean position click to hear

Horizontal line around which the wave oscillates, carrying energy.

wavelength click to hear

Distance between two consecutive crests or troughs; it corresponds to the distance traveled by the wave over time (its period).

displacement click to hear

Gap in relation to the mean position.

crest click to hear

Highest point of the wave.

trough click to hear

Lowest point of the wave.

amplitude click to hear

Maximum displacement of a wave in relation to its mean position; it corresponds to the amount of energy transmitted.

propagation click to hear

Motion of a wave leaving its source.