SOUND ANSWERS

SOUND ANSWERS - SOUND QUESTIONS AND ANSWERS 1. Why doesnt...

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SOUND QUESTIONS AND ANSWERS 1. Why doesn’t sound travel in a vacuum? THERE ARE NO ATOMS TO VIBRATE TO CARRY THE SOUND WAVES. IT NEEDS A MEDIUM TO TRAVEL THROUGH. 2. What factors does the speed of sound depend upon? What are some factors that it does not depend upon? IT DEPENDS ON THE “STIFFNESS” OF THE MATERIAL IT IS PASSING THROUGH (WHETHER IT IS A GAS, LIQUID OR SOLID), HOW MASSIVE THE ATOMS ARE (HOW EASY OR HARD IT IS TO GET THEM VIBRATING). IT DOES NOT DEPEND ON THE FREQUENCY OR WAVELENGTH OF THE SOUND WAVE. 3. Why would it be futile to attempt to detect sounds from other planets, even given the very best in audio detectors? THEY CANNOT TRAVEL THROUGH EMPTY SPACE – NO ATOMS 4. Why do flying bees buzz? THEIR WINGS BEAT AT A PARTICULAR FREQUENCY. SO THE AIR IS PUSHED AT THAT FREQUENCY, AND WE HEAR A SOUND AT THAT FREQUENCY. 5. A cat can hear sound frequencies up to 70,000 Hz. Bats send and receive ultrahigh- frequency squeaks up to 120,000 Hz. Which hears sound of shorter wavelengths, cats or bats? BATS: HIGHER FREQUENCY MEANS SHORTER WAVELENGTH. 6. What does it mean to say that a radio station is “at 101.1 on your FM dial?” IT IS THE FREQUENCY OF THE RADIO WAVE THAT THE STATION IS EMITTING: 101.1 MILLION
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SOUND ANSWERS - SOUND QUESTIONS AND ANSWERS 1. Why doesnt...

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