Lesson 9

Sound Applications

Sound Spectrums

To the left is showing how to use the PhyPhox App for your smartphone to get a sound spectrum in the classroom (if you wish).

More websites with sound spectrum can be found

Doppler Effect

Doppler Ball Toss Activity

Racecar Doppler Sounds

Echolocation Videos

Guess the Sounds!

Note: If this video does not work, google "Guess the Sound" on YouTube. Be sure to test the video first to make sure it is classroom appropriate. Don't spend more than 15 minutes guessing sounds or environments.

Watch this First

This video explains both passive and active echolocation best.

TED Talk

Daniel Kish demonstrates in a TED talk how he uses echolocation.

Echolocation to Ride a Bicycle

Daniel Kish rides a bicycle in traffic.

Bonus Materials - Sonic Booms and SuperSonic Flights

NASA captures unprecedented images of supersonic shockwavesNASA has captured unprecedented photos of the interaction of shockwaves from two supersonic aircraft, part of its research into developing planes that can fly faster than sound without thunderous "sonic booms".

'Urban canyons' prolong sonic booms in citiesTwenty years after the retirement of the Concorde, several industrial and research projects want to make supersonic flight a reality again. However, supersonic planes produce sonic booms loud enough to warrant noise concerns and regulations, limiting their use over land.

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