Which property of a sound wave does your ear understand as pitch?
AIts amplitude
BIts wave speed
CIts frequency
DIts wavelength
Answer & Solution
Correct answer: C. Its frequency
1. A bird chirp sounds high and a lion roar sounds low.
2. The frequency of a sound wave is what your ear understands as pitch.
3. A higher frequency gives a higher pitch and a lower frequency gives a lower pitch.
4. The amplitude sets how loud the sound is, not how high or low it sounds.
_Source: Siyavula Physical Sciences Grade 10 (Everything Science, CC BY 4.0), Chapter 10: Sound_
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