Stamp This! By: Cameron Shelton Caleb Bales Kelvin Barner Team & Device Introduction Our task was to build a Rube-Goldberg machine that would stamp a piece of paper. The machine we built was required to incorporate projectile motion, conservation of energy, and conservation of momentum. Budget Except for the track, all of the materials used in our project were found laying around the house. The overall cost for the materials used in our project was under $13. Energy Conservation of Energy – Potential to Kinetic as car starts from rest and ends at end of ramp. Projectile Motion – car leaving track to strike stamp lever. Conservation of Momentum – collision of car and stamp lever. Conclusion Difficulties Encountered: - Determining the best angle for projectile motion - Keeping the lever upright until needed. This was a fun, yet simple project that did not take a lot of time to complete.