Chapter 12 soun Flashcards
1
Q
What are compressions
A
region where air pressure is slightly higher than the surrounding air pressure
2
Q
Rarefractions
A
region where air pressure is slightly lower than surrounding air pressure
3
Q
What state does sound travels the fastest in a medium
A
solid > liquid > gas
4
Q
What is pitch
A
related to frequency
5
Q
What is range of audibility
A
from 20hz to 20000hz
5
Q
What is ultra sound use for
A
check cracks in slabs and pipes
5
Q
A
