Waves in Two Dimensions Flashcards
2D waves can come from either a point source or a straight ____ source.
Line
When waves in 2D are from a point source, they are DIVERGING which means what?
they spread out as the wave moves
When waves in 2D are diverging, it causes the waves to ____ energy the further away from the point source they go
lose
Waves in any liquid cause a ________ motion of the molecules on the surface.
circular
When a wave strikes a solid boundary, it will be __________ by the boundary
reflected
when a _____ source wave strikes a barrier, it is reflected back in a way that looks like the wave is coming from behind the barrier
point
Waves travelling in one medium will have a ________ frequency, wavelength and speed.
constant
If the wave changes medium, the _____ and __________ of the wave will change while the FREQUENCY remains unchanged
speed and wavelength!
what is the refraction formula?
V1/λ1 = V2/λ2
Are waves summative?
YES
Waves combine either ______________ or _____________
constructive or destructive
When crests meet crests and troughs meet troughs, ____________ interference occurs
constructive
When crests meet crests and troughs meet troughs (constructive interference), what are they called?
antinodes or maxima
When crests meet troughs, complete destructive interference occurs and these are called what?
nodes or minima
