when a sound passes through the air, it affects the pressure of the air n the motion of the molecules of the air.
HOW???
2006-10-02 20:37:04 · 6 answers · asked by Mystic healer 4 in Science & Mathematics ➔ Physics
in order to have propagation of a mechanical wave you will need a medium that wll asist the taveling of the wave.
the molecules of the medium vibrate and actually oscillate in suce a way that they cause the same effect to near by molecles as well and so on so that is how the propagation takes place.
from the source to the medium the excitation "jump" from one molecule to another.
now why if you yell 3 Km away from your friend he will not here you? because you have attenuation . energy is lost. atoms vibrate and they need energy to do so. this is efficient energy loss 9 if such a term) but there are losses of other nature that actually do not promote the propagation.
so the kinetic state of the molecules of the medium change since molecules vibrate and tranfer the information to nearby molecules.
its inetic energy is increased.have you ever been in a party with a really loud sub-woofer. or when you enter the club that your body feels the vibration it is shaking all over from the low frequence propagation. something lile that happens.
2006-10-02 20:54:53 · answer #1 · answered by Emmanuel P 3 · 0⤊ 0⤋
Sound as we know trvells in the form of longitudinal waves. Which means there are alternate compression and rarefractions in the mediun( here air) through which it passes.. However... once the wave passes, there is NO change in the medium through in the wave passed.
Now, when a sound wave is produced, the air closest to the source gets comprssed.. and the subsequent layer of air gets rarefied. Next when the wave travels, the rarified layer of air gets compressed and the next layer gets rarefied.. the previous layers retain their original form once the wave is passed.
2006-10-03 04:37:17 · answer #2 · answered by Ajay I 1 · 0⤊ 0⤋
sinusoidally
when a sound wave is created it is a disturbance which causes vibration in the air molecules this disturbance moves away
2006-10-03 03:40:23 · answer #3 · answered by chaits89 2 · 0⤊ 0⤋
in simple terms: when sound waves pass thru the air, they cause alternate compression and expansion, so particles vibrate back and forth.
2006-10-03 03:41:54 · answer #4 · answered by ndinianodiwa 1 · 0⤊ 0⤋
Have you tried farting
2006-10-03 03:40:33 · answer #5 · answered by Anonymous · 0⤊ 0⤋
i dont no sab
2006-10-04 06:06:35 · answer #6 · answered by kichu 2 · 0⤊ 0⤋