1. An Elephant Grazing Jeremiah Thomas Daniel Conrad Katie Gilles

2. Design Goals  Simple Parts  Effortless Assembly  Aesthetically Pleasing  Trouble-free Mobility  Low Cost

3. How It Works  One golf ball is released which triggers the release of several other balls.  All balls steadily fall into bucket lifting weight.

4. Calculations Ug=mgh KE=(1/2)mv 2 Us=(1/2)kx2 Ug=mgh KE=(1/2)mv 2 Ug=mgh Conservation of Energy

5. Costs Dowels (square) $4.76 Dowels (round) $.78 Supports (1” x 2”) $2.44 Ramp (Fascia Board) $1.94 Golf Balls $3.99 Glue (Tube) $1.68 Rubber Bands (Pack) $.99 Cardboard (Toilet Rolls) $.20 Ball Bearings $3.99 Total:$20.77

6. Conclusion  Quick Construction  Easily Adjustable  Stress Free  Extremely Sensitive  Low Consistency  Complex Parts ProsCons