Lesson 13 Flashcards
1
Q
Two compressions combine to form a _____ compression
A
Larger
2
Q
This constructive interference produces….
A
A louder sound
3
Q
What happens when a compression and a rarefaction interfere destructively?
A
They produce a region with zero amplitude (no sound)
4
Q
The interference of sound waves with slightly different frequencies resulting in a periodic variations in volume is called…
A
Beats
5
Q
How is the beat frequency produced by two sounds found
A
By determining the absolute value of the difference of their frequencies
6
Q
What is the doppler effect
A
The perceived change in the pitch (frequency). Of a sound defeated by a listener, compared to the actual pitch produced by a moving source
7
Q
The Doppler effect is produced from a combination of
A
Sound and motion
