GeaRatio By: Thomas Brauer, Reese DeBlois, Brittany Fortenberry, and Lindsey Shreve By: Thomas Brauer, Reese DeBlois, Brittany Fortenberry, and Lindsey Shreve Section: B1 Section: B1

Device Design Two supports which hold the dowel in place Two supports which hold the dowel in place Ratio of gears Ratio of gears Weight to counteract the 1 kg mass Weight to counteract the 1 kg mass Length of the strings Length of the strings

Design Issues and Cost Analysis Started with a different design Started with a different design Developed current design to accommodate the weight Developed current design to accommodate the weight Decided to straddle two tables instead of using one Decided to straddle two tables instead of using one Wood- $6.00 Wood- $6.00 PVC- $1.89 PVC- $1.89 Foam Board- $1.00 Foam Board- $1.00 Weights- $5.00 Weights- $5.00 Screws/Glue- $2.38 Screws/Glue- $2.38 TOTAL- $16.27 TOTAL- $16.27

Stored Energy Energy stored as Gravitational Potential energy Energy stored as Gravitational Potential energy Gravitational Potential energy is converted to Kinetic energy Gravitational Potential energy is converted to Kinetic energy Weight is lifted using the force of gravity Weight is lifted using the force of gravity

Conclusions Although our design is extremely simple, we still used a simple machine, a wheel and axle, to raise the 1 kg mass to table height Although our design is extremely simple, we still used a simple machine, a wheel and axle, to raise the 1 kg mass to table height We worked together a group to design this device and we feel that our design will work and perform the tasks needed. We worked together a group to design this device and we feel that our design will work and perform the tasks needed.