Rest assured, this is not my homework.
2007-03-06 12:42:03 · 5 answers · asked by Dovey 7 in Science & Mathematics ➔ Physics
Light waves are energy packets (photons) that propagate by alternating form between kinetic (max magnetic field) and potential (max electric field). They do not need a medium.
Sound waves are disturbances of the medium (air) that propagate in the medium.
2007-03-06 13:03:04 · answer #1 · answered by sciquest 4 · 0⤊ 0⤋
LIght propagation works on a different scenario than sound.
So occurs because of molecular collisoin in a mass,whidh than is transmitted to air mollecular collision. The molecules push ewach other in the same way electrons push each other.Our ear is sentitive fluctuation of pressure changes at a certain spectrum which the ear can respond.
2007-03-06 12:55:08 · answer #2 · answered by goring 6 · 1⤊ 0⤋
Light is an electromagnetic wave, and all electromagnetic waves can travel through a vacuum. Sound on the other hand is a mechanical wave and therefore can only travel through matter.
2007-03-06 13:33:55 · answer #3 · answered by Anonymous · 1⤊ 0⤋
light is magic
light IS a wave AND a particle at the same time
this goes really deep (many books written about it) but I *think*
that light can use its particles to make its own proper medium even in a vacuum
sound can't do that because it needs something to vibrate, =\, tough luck
2007-03-06 12:47:22 · answer #4 · answered by alex 2 · 1⤊ 1⤋
sound needs a medium to travel through. water, land, air......
light needs no medium. it will travel through the galaxy with no atmosphere. nobody knows why, not even nasa. that's why nobody answers......
2007-03-06 12:54:23 · answer #5 · answered by Anonymous · 1⤊ 1⤋