Create a graph, using Logger Pro please. This graph should have length on the x-axis and period for one oscillation on the y-axis. Don't forget units.
If you can, play around with the curve fit and see if you can make a curve fit the data. I suggest using "Power" under "Curve fit".
Using the data (A and B) from the theoretical curve, write a theoretical equation for the period of your pendulum.
Now look up the actual equation for the period of a simple pendulum. Are there similarities? Discuss.
(FYI: Useful site for physics learning: http://www.physicsclassroom.com/)
If you can't get Logger Pro to download successfully - and some folks have not been able to - download the demo version (but make sure you don't input any credit card data to do so). If you are still not able to make Logger Pro work for you, either use Excel or use a computer at school with Logger Pro. You can also try a different browser. If it appears to download, but you can't find it on your machine, search for "Logger" (not loggerpro). There should be a folder with the program inside.
Finally, if you do not have a computer at home, maybe we can find one for you. Chat with me and I will connect you with our very own organization, Computers for Kids.
Thanks! Happy weekend, physics phriends!
sean
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