Music consists of many frequencies of sounds that mix together mathematically
Beats are periodic repeating fluctuations in the wave
B
"The Doppler effect can be described as the effect produced by a moving source of waves in which there is an apparent upward shift in frequency for the observer and the source are approaching and an apparent downward shift in frequency when the observer and the source is receding."
Doppler effect is seen every day in sirens as they pass by and the pitch is heard differently
Source always emits the same frequency but the pitch sounds like its changing
Shockwave- moving the speed of sound
Sonic boom- moving faster than the speed of sound
C
When one medium ends and another begins- boundary
Behavior of a wave when it reaches the end- boundary behavior
D
Reflection of sound waves off of surfaces can lead to one of two phenomena - an echo or a reverberation
Echo- when the sound I s.01 faster than it traveled initially
Reverberation- occurs in a small space of 17 meters of less