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Asked by to Kate, Kieren, Nicola, Rowena, Roy on 14 Mar 2014. This question was also asked by .
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Rowena Fletcher-Wood answered on 14 Mar 2014:
Yes. When you speed up sound you change its frequency not the pace it travels so it takes the same time to get to you but sounds very high pitched when it does!
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Kate Nicholson answered on 14 Mar 2014:
Light is usually faster than sound, light travels at 300000000 metres a second (ish) through air where sound can only go 343 metres per second in air. Sound can go faster than this in liquids or solids, but light would never be slowed down enough that sound could go faster. Speeding up the recording doesn’t change the speed of the sound only the pitch (frequency)
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Kieren Bradley answered on 14 Mar 2014:
The best way to get sound to go faster than light is to slow down the light by shining it through something that makes it move much slower. For instance: http://abcnews.go.com/Technology/story?id=99111 talks about a group of scientists who managed to get light to go at 38 mph, which is a lot slower than the 761 mph speed of sound, by passing it through very cold sodium atoms.
Comments
Kate commented on :
@Kieran now I’m curious, how fast could sound travel in the supercooled sodium if the atoms are barely vibrating? Would it be faster or slower than the light?
jadeholland123 commented on :
Thanks! 🙂 🙂 🙂