Does speed of sound change?
143776
hey now.  just a minute.  density is not the only factor that determines the speed of sound in a solid.  also at issue is the "stiffness" of the material; in physics terms this is called the elastic modulus.  so the speed of sound is higher in diamond (12000 m/s) than it is in lead (1600 m/s) even though lead is denser.\n\nin general the equation for the speed of sound in a bulk material is v = sqrt(B/p) where B is the elastic modulus and p is the density.  \n\nthe elastic modulus is not a particularly simple quantity to derive from first principles, compared to density - it has to do with how the material is structured on an atomic level.  however the speed is certainly easy to measure.  here is a page with some tabulated values for various materials:  http://hyperphysics.phy-astr.gsu.edu/hbase/tables/soundv.html\n\nit shows that brass has a higher speed of sound.
544479
The speed of sound: 340.29 m / s
466291
The speed of sound varies depending on the material it is travelling through, the pressure, altitude and temperature.\n\nOn the assumption you're talking about air and that you're at sea level under normal atmospheric conditions then 340m/s would be the speed at 14 degrees C and 330m/s would be the speed at minus 1 degree C - so they're both right.
671431
sure does.  wavelength changes, therefore frequency must change since they are both proportional to c, the speed of light.
224941
0ft/s. Sound doesn't propagate in vacuum
750781
Yes, the sound will change from slightly to extremely. Depending on which sound you want there are various brands...
345286
The speed of sound v in dry air at temperature T (in celsius) is given by:\n\nv = (331.4 + 0.6 T) m/s\n\nSpeed of sound depends on various factors, such as, temperature, humidity, density, etc. of the medium in which it travels.\n \nThe following links provide the speed of sound calculators and related links:
84323
You tell me, you the one doing the lab probably.\n\nOne of several possible objects could be to identify the speed of sound.  You might also be studying the nature of waves (wavelength, frequency, ...).
518432
The higher the frequency the harder it is to increase the intensity (volume).\n\nThis is because you have less time to move the diaphram of the speaker at higher frequencies. The further the diaphram moves the louder the noise. Therefore for higher frequencies the diaphram must move faster to move the same distance in the same time to maintian the same volume.
516568
when you travel faster than the speed of sound.
289044
The frequency range is generally accepted to be 20 Hz to 20,000 Hz. With the speed of sound = 334 m/s, 20 Hz has a wavelength of 16.7 m, 20,000 Hz a wavelength of 16.7 mm. (Ubergeek, the answerer in your link slipped a decimal place.)
960213
Sound is a type of longitudinal, mechanical wave. They need a medium to propagate and will not travel through a vacuum. Sound travels at different speed in different media. The speed of sound is determined by the density (ρ) and compressibility (β) of the medium. Density is the amount of material in a given volume, and compressibility is a meaasure of how much a substance could be compacted for a given pressure. The denser and the more compressible, the faster the sound waves would travel. Therefore, the speed of sound is about four times faster in water than in air. The speed of sound in a medium can be determined by the equation  …\n\nv = (βρ)-1/2\n\nWhere …\n\nv is the speed of sound,\nβ is the bulk modulus of elasticity, and\nρ (rho) is the density.\n\nThe speed of sound can also be affected by temperature. Sound waves tend to travel faster at higher temperatures. I have found different values for the speed of sound in water in different sources. They range from 1450 to 1498 meters per second in distilled water and 1531 m/s in sea water at room temperatures (20 to 25 °C).
789953
Measure the speed of sound by help of an echo, a stopwatch and a tape-measure. (depending on temperature it is about 430 m/s.\nRepeat your measurements at least 10x and have the average.\nGood luck\n\nTh
241465
No. Wave dispersion separates frequencies. The Doppler effect is caused by motion towards or away from a source, altering the perceived frequency.
438410
Mach is the speed of sound. So Mach 3 is three times the speed of sound.
272342
<LOL> NO! The doppler effect is about compression and rarifaction of a wave generated by a source moving through space. Time can only change with a warping of spacetime itself. Apples and oranges.
1138474
Mach is speed of sound, so M3 is ~2200 mph.\n\nYou could hear your voice because we hear our own vioce partially through internal resonance, which would not be affected by external velocity.