Question

match each sound feature to its description.
rarefaction
amplitude
compression
wavelength

the density of the medium’s particles at the compressions of the wave
the distance between compressions or rarefactions
the part of a wave where the particles of the medium are closer together
the part of a wave where the particles of the medium are farther apart

Explanation:

To solve this, we match each sound wave term to its definition:

• Rarefaction: In a sound wave, rarefaction is the region where medium particles are farther apart. So rarefaction matches "the part of a wave where the particles of the medium are farther apart".
• Amplitude: Amplitude relates to the energy/intensity of the wave, and it corresponds to the density of medium particles at compressions (higher density at compressions relates to amplitude’s role in loudness). So amplitude matches "the density of the medium’s particles at the compressions of the wave".
• Compression: In a sound wave, compression is the region where medium particles are closer together. So compression matches "the part of a wave where the particles of the medium are closer together".
• Wavelength: Wavelength is defined as the distance between successive compressions or rarefactions. So wavelength matches "the distance between compressions or rarefactions".

Answer:

• rarefaction → the part of a wave where the particles of the medium are farther apart
• amplitude → the density of the medium’s particles at the compressions of the wave
• compression → the part of a wave where the particles of the medium are closer together
• wavelength → the distance between compressions or rarefactions