Sound wavelengths are interpreted by the brain as

• A. pitch.
• B. volume.
• C. decibels.
• D. timbre.

Answer: (A)

Verified step by step guidance

1. Understand that sound waves have different properties such as frequency, amplitude, and waveform, which are interpreted by the brain in various ways.
2. Recognize that frequency of a sound wave is related to how many times the wave oscillates per second, measured in Hertz (Hz).
3. Identify that the brain interprets the frequency of sound waves as 'pitch'. Higher frequencies are perceived as higher pitches, while lower frequencies are perceived as lower pitches.
4. Differentiate pitch from other sound properties: 'volume' is related to the amplitude of the sound wave, 'decibels' are a unit of measurement for sound intensity, and 'timbre' refers to the quality or color of the sound.
5. Conclude that when the problem asks how sound wavelengths are interpreted by the brain, the correct answer is 'pitch', as it directly relates to the frequency of the sound wave.