Students designed a vehicle powered only by elastic energy and using repurposed materials. They had to design the car to travel as far as possible. Students had to learn about kinetic and potential energy and explore how they can use them to reduce friction. Students tested many prototypes and recorded their observations to revise their work, as the focus was on pro typing and improving ideas through multiple iterations.
“Our group had three different trials. Luckily, each trial did move the car a little. It was pretty fun. Each time our car design was modified it improved, it traveled about 5 meters. “ Jennifer
"The beauty of the rubber band vehicle challenge is that students apply their understanding of elastic potential energy in so many unique ways. No two vehicles are alike. We even had a few boats. The focus was not on the product itself, but how the vehicle changed over time. When there were big and little “fails”, students saw an opportunity to make observations of the performance of their vehicle and create engineering solutions directly based on those observations. In this way, they worked to optimize their design solution." - Brian Hall
“One reason I like the rubber band car project is is because it offers students the potential to come up with multiple solutions to the same problem. It’s slightly more complicated than one of our ballon car project and provides the students the opportunity to use more sophisticated engineering skills. They need to be thoughtful about how they will power a vehicle using elastic potential energy and there isn’t one solution, that’s why we do this project every year.” - Jeff Barrons