Longitutinal Waves Flashcards
What is this
A wave for which the particles are displaced parallel to the direction of wave propagation
What kind of waves are longitudinal waves
Sound waves
What do longitudinal waves require
They require a medium in order to propagate from one point to another
What can they not travel through
They cannot travel through vacuum
What is a vacuum
A completely empty space with no matter
What are longitudinal waves made up of
Compressions
Rarefactions
What is compressions
a region where the wives are closely packed together
What is rarefactions
A region where the waves are spread out
Hat is wavelength
The distance between the centres of two consecutive compression or rarefactions
What is an echo
Sound waves that have been reflected or bounced add a wall or surface
What what speed dos sound travel at
343 ms~-2
