Cardoard Chair Progress

We're making progress on our cardboard chair. We are testing out the idea of having cylindrical legs for the chair.

Kochs Law Lab Report

https://docs.google.com/open?id=0B7dQuiyiP5a-YjVjMzJjMzEtNWFmMS00ZmFmLWEwMjgtZDQ0Y2JmZGVlODJl

In this lab, we used equations and measurements to find the oscillation period and the force constant.  We used the following tools:
meter stick
weights
a spring

We also used the following equations:
PE=1/2KX^2
KE=1/2MV^2
PEg=MGH

First, we measured the spring displacement, the mass, and the time it took the spring to complete ten oscillations.  It took 8.5 seconds to complete ten oscillations, the mass was 55 grams, and the displacement was 14 cm.  After we found the gravitational potential energy, we used that to find the force constant, using our formulas.    We found that the time period for one oscillation is 0.85 seconds, and the force constant is 77.