Wave intensity Flashcards
1
Q
power of a wave
A
rate at which this energy is emitted by its source (watts)
2
Q
what happens as a wave travel from its source
A
the energy spreads over a larger area (m^2)
3
Q
intensity of a wave
A
pressure/area
4
Q
why is the area 4 pi r^2
A
the wave spreads out from its source in spherical pattern where r is the distance from the source.
5
Q
Intensity relation to radius
A
inversely proportional
