Question

label the parts of the longitudinal wave. compressions: rarefactions: wavelength:

Explanation:

• Compressions: In a longitudinal wave, compressions are regions where the particles are close together. In the diagram, region A shows the coils of the spring (representing particles) tightly packed, so A is compression.
• Rarefactions: Rarefactions are regions where the particles are spread apart. Region B in the diagram has the coils of the spring more spread out compared to compressions, so B is rarefaction.
• Wavelength: The wavelength of a longitudinal wave is the distance between two consecutive compressions (or two consecutive rarefactions). Region C measures the distance from one compression (or rarefaction) to the next similar region, so C is wavelength.

Answer:

Compressions: A, Rarefactions: B, Wavelength: C