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26.1, .2 Concept Qs


What is the source of all sounds? All sounds originate in the vibrations of material objects.
Give 3 examples of sources of sound. 1. Sounding board 2. Air column 3. air in throat
How is the pitch of a sound related to frequency? We describe how we hear frequency as pitch.
What is the normal range of sound frequencies that young people can hear? 20-20,000 HZ
What happens to our range of hearing as we age? We lose hearing in the higher frequencies first.
Describe what happens to aire as a sound wave moves through it. Molecules are compressed and then become more spread out (rarefied) in the same frequency pattern as the frequency of the vibrating source.
Created by: cdeutsch