Question

An illustration of a horizontal spring. In the spring are areas where the rings are closer together and areas where the rings are further apart. Two areas where the rings are closer together are labeled A, two areas where the rings are further apart are labeled B and the distance between adjacent areas where the rings are closer together is labeled C.
Label the parts of the longitudinal wave.

Wavelength:

Rarefactions:

Compressions:

Answer 1

Wavelength: C

Rarefactions: B

Compressions: A

(Explanation: compressions = regions of coils close together (A); rarefactions = regions where coils are spread apart (B); the wavelength is the distance between adjacent compressions or adjacent rarefactions — here labeled C.)