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Frequency

Hertz (Hz)

Longitudinal

Particles

Pitch

Transverse

Amplitude

A wave where the particles vibrate at right angles to the direction the wave is travelling.

The size of vibrations, or the distance a particle vibrates when a wave passes.

The unit of frequency.

A wave where the particles vibrate in the same direction as the wave is travelling.

The number of waves per second.

How high or low a note sound.

The tiny pieces that everything is made out of.