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Range of human hearing, Interference (three ways), Relationship of frequency and size. Lots of different investigations with sound are possible. Here are a few that I do as ...
Not much is needed for this.1. Computer (with Audacity and Visual Analyser)2. Microphone3. Speakers5. Water bottle (and water)
You can use Audacity or a free oscilloscope program, Visual Analyser for this. Both will work as function generators. In Audacity just go to the "Generate" menu and ...
Again use either Audacity or Visual Analyser to generate a function. Make a 400 Hz tone and set the balance so it only comes out of one speaker. ...
Use Audacity or Visual Analyser to make a sound. 400 Hz works pretty well. This time you want both speakers to be generating a sound. Again, you'll need ...
This time you will generate two slightly different frequencies, one from each speaker. In Audacity:1. Select "Tone" from the "Generate" menu. Set the frequency to 440 Hz. Then ...
You'll need Visual Analyser and your water bottle for this part. 1. Drink some of the water from the bottle.2. Blow across the top of the bottle. If ...
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