Speed+of+Sound

= = Speed of Sound
 * Is affected by the medium it is traveling though
 * When traveling through air is affected by temperature

__**Speed of Sound in Air**__ v = 331m/s + (0.6 m/s /°C)T v =(331m/s)√T/273K

v =√B/ρ B = Bulk modulus
 * __Speed of Sound in a Liquid__**

v = √Y/ρ Y = Young's Modulus
 * __Speed of Sound in a Solid Rod__**

**How can you find the Speed of Sound?**
To find the the speed of sound all that is needed is a tube closed on one end and and object with a known frequency (The water is being used to close the one end of the tube)

The tuning fork is now held above the tube so that the sound is amplified by the tube. Moving the tube up an down will cause the amplitude of the sound to change. By finding the distance between the two loudest points found by moving the tube up and down, the speed of sound can now be found. The the distance the was found is the distance between antinodes and half a wavelength. Now the formula v=λf can be used. For this lab it was found that λ =.65 m It was also known that f = 523.3 Hz Now by solving v=(.65)(523.3) This shows that v or the speed of sound = 340.1 m/s