10.8 Flashcards
(7 cards)
1
Q
Vibrations
A
Repeated fast back and forth movements
2
Q
Compression
A
Process of pushing a material into itself
3
Q
Rarefactions
A
In sound waves the layers of the earth are spread apart
4
Q
Soundwaves
A
Vibration of particles in the air
5
Q
Frequency
A
Number of vibrations in one second
6
Q
Hertz
A
Unit of frequency
7
Q
Pitch
A
Highness amd lowerness of sound
