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 Posted: Sun May 03, 2009 2:46 pm
People of the interwebz, I seek your ideas!
I am an education student, and in a few weeks I will be teaching a lesson to a high school physics class about sound. So far, that's all I have.
What would you guys be interested in for a lesson about sound? Waves, propagation, wave speed through different media, musical instruments, waveform superposition, noise cancelling...?
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Posted: Sun May 03, 2009 3:36 pm
Do you remember when we were just kids,
and cardboard boxes took us miles from what we would miss?That's tough... And so not on my level...
Ideas could be, how does sound echo in a small house, compared to a bigger house? We just moved from a bigger house, with insulation, to a smaller one without any, and you can hear EVERYTHING.
Musical insturments would be sweet. Compare the sound/vibration of a drum, a bass, a guitar... Anything that's similar. School yard conversations taken to heart,
and laughter took the place of everything we knew we were not.
Inevitable, by Anberlin
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Posted: Sun May 03, 2009 9:45 pm
If you ask what would be interesting, maybe this list will help:
1. What a sound is?
2. How do we hear a sound? What sounds we can or can not hear? How we determine the sound source?
3. Things that can produce sounds. How insects make sounds when flying?
4. Wave length. Application in music.
5. The speed of sound. Using it to determine distance. Reflection and resonance.
6. Technical ways to record and produce sounds (microphones, speakers).
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Posted: Wed May 06, 2009 12:47 am
Get one of the oscillator machines and change the wavelengths. You can see how well the people in the class can hear, like to what frequency. You could then go on to say how different animals can hear sounds at different wavelengths, e.g. bats and cats =]
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Posted: Mon May 18, 2009 9:20 am
im not sure on the level (being english)
but theres an experiment that uses 2 speakers (from the same signal generator) and they interfere with each other so that in some areas of the room there is a quieter sound and in others there is a louder sound.
may be a lil complicated gonk
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