Resonance Experiment

Use this applet: - you'll need to use an OpenGL-compatible browser (ie: not Internet Explorer)

Increase the amplitude to its maximum value.

DO NOT drag the pole on the animation (at least not for data that you enter here - play with that AFTER you've entered your ten points)

You need to pick any two of the first four standing waves that are possible on the string. For each of the two, you need to:
- Change the driving frequency to five different values around the frequency that produces that standing wave's maximum amplitude.
- Measure the amplitude of the standing wave for each of the five driving frequencies - you should pick frequencies that give you a relatively large spread of amplitudes (that is, don't just pick five frequencies right next to each other)
- Make sure that you're measuring the amplitude (and not twice the amplitude). Use the grid lines as the unit. If the amplitude is half of a grid line, you'd enter .5. Measure to the nearest .1 grid lines.
- Enter each of these data points (separately) into the form below. You'll have to submit the form for each data point. I'd copy your name into the buffer so that you don't have to type it 10 times.

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