In: Physics
Sounds waves are disturbances in air molecules that move at 343 m/s. Pitch is a measure of a sounds frequency. A middle C note in music has a frequency (pitch) of 261.6 Hz.
a. If you are listening to a middle C, how many
pulses (wave crests) of
sound hit you in one minute (1 minute is exactly 60 seconds)?
b. How far apart is each wave crest (wavelength)
in a middle C note?
c. If that note was sung louder, would either the
wavelength or
frequency change?