1. By: Natalie Browning Scott Burnette Kyle Holtsclaw Heather McMahan
The Marble Machine
By: Natalie Browning
Scott Burnette
Kyle Holtsclaw
Heather McMahan

2. Overview Made of PVC pipe and one piece of foam
Held together with tape and hot glue
Relies on gravitational potential energy to get started
Marble rolls through a series of pipes and stops after dropping through the last pipe
Average run time is seconds

3. Materials/Cost PVC pipe…………..……………………$5.00 Wooden base……………………….…$2.00
Tape and hot glue……………..….…$3.00
1 marble…………………………………..$0.10
Foam………………………………………..$1.00
TOTAL……………………………………….$11.10

4. Stored Energy Marble is dropped at the top of the roller coaster.
Initial energy=gravitational potential energy
Converted to kinetic energy

5. Conclusions Design Complications:
1. Placing the different PVC pipes at the right angles
2. The marble falling off the edges
3. The roller coaster not lasting 15 seconds
We spent the most time figuring out how slowly
the marble could roll without actually stopping and at
which angles the pipes had to be positioned.