Topic 3 - Sound Waves Flashcards
1
Q
what type of waves are sound waves?
A
longitudinal waves
2
Q
what are sound waves caused by?
A
vibrating objects, passed through the surrounding medium as a series of compressions
3
Q
when are sound waves reflected?
A
sound waves will be reflected by hard flat surfaces
4
Q
when are sound waves absorbed?
A
sound waves are absorbed by things like carpet and curtains
5
Q
what happens when sound waves enter different media?
A
they refract. for example when entering denser material they speed up
