2-12-2014 Periods of Oscillation Lab# 22

Purpose

The purpose of this lab was to calculate the period of a half circle that we cut out of Styrofoam cardboard.

First we had to calculate the I in order to to plug it into our parallel axes theorem that will get us our Icm. With the r of the circle measured we were able to solve for the period once the Icm was plugged into the angular momentum formula. Our calculated period was .636s.

 After calculations were finished we had to attach our semicircle to an apparatus that would measure our period through the sway of it. The period found on the graph was.6113sec.

So our percent error turned out to be 3.93%