Work-Energy Theorem II

This is a lab that we are very proud of and requires that the students be inventive and work carefully.

Again this lab uses a level air-track, and a glider, along with light string, a spring, and photogates. The purpose of this lab is to stretch the spring a certain distance and then determine the work required to do this. The system is then released and the students then measure the kinetic energy of the glider using photogates and a triple beam balance. If the work done is within 5% of the measured kinetic energy the group doesn't have to do a lab report. This is about all that is told to the students, they have to figure out how to do the rest of the experiment. Students come up with a variety of ways to do this experiment and they become quite proud of their own solutions. All lab groups had results of 5% or better!!