If someone stood 100 m away from you, and shouted hello. And then, the same person did the same thing, but this time, the wind blew towards them (away from you) [ignoring the fact that wind makes sound] will the sound of the hello be blown away from the person, and therefore sound quiter than before?
2006-08-14 04:20:33 · 14 answers · asked by Anonymous in Science & Mathematics ➔ Weather
In regard to answers, but surely sound expands the same everywhere equally? therfore no afected by wind?! Has anyone got actauly proof, like a website, please?
Thanks
2006-08-14 04:29:14 · update #1
No web site but common sense if you think about it. Sound is a vibration, a resonance, which creates sound waves. the sound waves are slight pressure differentials in the air which radiate out from the source. If you are standing next to the person, the waves are very concentrated (think of the pebble splashing into the pond). As you get farther away the waves have radiated out farther, thus making them weaker. You no longer get the full concentration of the sound.
Now factor in the wind. The wind is blowing at the source. Essentially this means more air mass must be transversed by the sound waves. So in effect, they have become weaker, or quieter, through less distance, due to the wind.
2006-08-14 04:35:46 · answer #1 · answered by Munster 4 · 0⤊ 0⤋
Does Wind Affect Sound Waves
2017-01-12 15:08:54 · answer #2 · answered by Anonymous · 0⤊ 0⤋
what you must remember is that as sound leaves a speaker it passes through a mesh, this creates areas of maxima and minima. this means that the sound quality can vary depending on where in the field of sound distribution you stand. when such a complex variable as wind is thrown in then even the very medium through which the sound wave is moving is being moved both translationally and vibrationally. this means that interactions between air molecules will be less efficient and the sound will deteriorate more quickly. the more directional the source of the sound the less the wind will have an effect but out of a concert speaker or a persons mouth the sound is spread widely and there is not enough energy to carry the waves as far if there is a wind.
2016-03-27 01:21:05 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Yes, sound is affected by wind.
Sounds are mechanical waves, meaning they transmit energy from a vibrating source and propagate through a medium.
In the case of sound, the medium through which the wave travels is air, thus any disturbance whatsoever to the medium itself (such as wind) would definitely affect the properties of the sound wave.
To answer your question, the loudness or intensity of the sound transmitted to the person 100 m away would depend on how the wind might affect the amplitude of the wave that travels across. If the amplitude (i.e. the maximum displacement from equilibrium) is increased, then the sound heard by the person should be louder, and vice versa.
I think any reputable physics textbook would tell you that the motion of mechanical waves is affected by the medium through which it travels. Sound need not travel uniformly throughout air, or any other material for that matter, when a disturbance is present in the medium
2006-08-14 04:36:52 · answer #4 · answered by nushsperson 1 · 0⤊ 0⤋
Sound is waves of the collision of molecules in air. So if the molecules are moving towards the source already, the sound would take longer to get from the source to the other person. As the sound take longer to travel, the waves will have spread more, and therefore the shout of "hello" will appear quieter.
2006-08-14 04:46:34 · answer #5 · answered by ralphseviltwin 2 · 0⤊ 0⤋
Yes, sound is physical, and is affected by the conditions that surround it.
I once had a most astounding experience relating to the effect of the environment on sound. I was in a room filled with thousands of shirts. As my friend spoke to me and I to her, our words were literally absorbed by the clothing and became surprisingly quiet compared to their usual level. We had to move quite close to one another in order to be heard!
Wind does definitely carry sound as many of your readers have mentioned. Here is a quote from the web site which I have listed for you below. (It also has some graphics. Just scroll down to the relevant spot.)
When a wind is blowing there will always be a wind gradient. This is due to the layer of air next to the ground being stationary. A wind gradient results in sound waves propagating upwind being 'bent' upwards and those propagating downwind being 'bent' downwards.
2006-08-14 04:59:11 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Definitely YES
2006-08-14 04:24:54 · answer #7 · answered by Clinkit 2 · 0⤊ 0⤋
What is sound?
Sound is a wave that needs materia to propagate.
A sound wave is a mechanical wave.
The materia (also wind and so air) between you and the person who is talking can modify the sound wave.
2006-08-14 04:29:06 · answer #8 · answered by Riccardo L 1 · 0⤊ 0⤋
sound needs matter, as its vibrating particles.. ie no sound in space.. its a vacume..
wind, can affect sound, as the matter that the wave wibrations are carried in will be moved. by the wind
2006-08-14 04:37:42 · answer #9 · answered by yeah well 5 · 0⤊ 0⤋
Astophysically speaking, audio waves have no relation to the impetus of foreign stimuli. The other person was ignoring you. Don't kid yourself.
2006-08-14 04:30:22 · answer #10 · answered by Anonymous · 0⤊ 0⤋