waves Flashcards
(13 cards)
what happens in transversal waves?
the oscillations are perpendicular to energy transfer
what happens in longitudinal waves?
the oscillations are parallel to envers transfer
what waves are transversal?
electromagnetic waves
what waves are longitudinal?
sound waves
what is the angle rule?
angle of incidence = angle of reflection
what is diffuse reflection?
when waves is reflected on rough surface and is scattered in lots of different directions
what is speculation reflection?
when light is reflected on a smooth surface and you get clear reflection
what is a p wave?
- primary wave
* longitudinal
what is an s wave?
- secondary wave
* transversal
what can a p wave travel through?
solid and liquid
what can a s wave travel through?
solid
how does sound reach ear?
- the wave vibrates air partials
* eye drum picks up vibrations and turns it into sound which can be interpreted
what is the range of human hearing?
20Hz to 20,000Hz