|
Hmmm, sound waves.
Link |
by vincentyuahyu90
on 2007-03-02 14:52:25 (edited 2007-03-02 17:21:44)
|
|
Do sound waves travel faster in the higher humidity air? Please explain. Thanks! GRAMMAR EDITED BY GENDOU |
|
Re: Hmmm, sound waves.
Link |
by
on 2007-03-02 17:27:37 |
|
Sound travels faster in more humid air. My guess is that this is due to the change in density. http://hyperphysics.phy-astr.gsu.edu/hbase/sound/souspe3.html http://www.school-for-champions.com/science/sound_speed_gas.htm 
|
|
Re: Hmmm, sound waves.
Link |
by vincentyuahyu90
on 2007-03-02 20:00:47
|
|
hmm thanks for the grammar chech. by the way the information of the changes of the wavelength , frequency, which one will change? p.s no information of these in the web you provide... |
|
Re: Hmmm, sound waves.
Link |
by
on 2007-03-02 20:04:38 |
|
the wavelength varies with the speed given a constant source of the frequency, such as sound.
|
|
Re: Hmmm, sound waves.
Link |
by vincentyuahyu90
on 2007-03-02 20:09:32
|
|
ok then , what you mean by that is the wavelength will not be changing because of the surrounding huh? ok then i got that now! thanks! |
|
Re: Hmmm, sound waves.
Link |
by
on 2007-03-02 20:19:09 |
|
no, no, as the humidity varies, so does the speed. since the source of the sound is constant (stuff sounds the same in rainy weather as dry weather) that means the wavelength MUST change.
|
|
Re: Hmmm, sound waves.
Link |
by none123456
on 2007-03-03 18:06:44
|
|
3 variables of a wave- Amplitude- strength of wave - not affected by change of density (I think), but eventually dies over large distances (considering size of wavelength) Frequency-the amount of waves per second. This is what affects the tone of the sound. Bass has a lower Hz (Hertz, or number of waves per second) than treble. For example, the equalizer setting on a music player program allows you to change the amplitude of certain hertz ratings. Wavelength- distance between wavelengths. This can only be affected by changes in the speed of sound because neither the strength or the tone of sound changes. Even in example questions on physics, this remains the same. Ex: A tone of sound travels at 300 m/s (i forget the speed of sound, so bear with me x.x) at 120 Hz. The speed changes from 300 to 250 m/s. What is the new wavelength? Formula is v = wf where w is wavelength (dunno how to type the actual signal). v=wf 300=w(120) 300/120=w w=2.5 (Oh sht... this aint a sound wave... but meh, since all waves act similarly) now at 250 m/s v=wf 250=w(120) 250/120=w w=2.08333... Wavelength changes because tone doesn't change, proven in math. |
|
Re: Hmmm, sound waves.
Link |
by vincentyuahyu90
on 2007-03-05 03:01:48
|
|
wow . that's what i called a bunch of knowledge.. well thanks!!! |