Label the compression and rarefaction of a longitudinal wave

An example figure from the Wave Generator.

A longitudinal wave of vertical lines over a distance axis in m, with its wavelength λ marked from one compression to the next and blank lines under a compression and a rarefaction — A longitudinal wave, like a sound wave, drawn as vertical lines over a numbered distance axis. Its wavelength λ is marked from the middle of one compression to the next. Blank lines under a compression and a rarefaction are for students to name them.

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Answer key

Wavelength: 4 m

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