The Berry-Go-RoundCollin White, Burns Cunningham, Trevor Toll, Julie Carrell

Overview

Dimensions 0.5m x0.5mx0.5mSet up: 30 seconds

Duration :15 secondsObject: lead ball and ball bearing

Begin coaster by hand

The rollercoaster starts off inside a spiral with the ball bearing. At the end of the spiral the ball bearing hits the lead ball causing it to fall into a PVC pipe leading to a loop. The lead ball goes up a curved incline and falls into a funnel. It then gradually rolls through a PVC pipe ending in a landing pad.

Equations

PE = KE + Eloss Energy: mgh=1/2mv^2+Eloss Ex: On roller coaster when ball bearing is

released

Conservation of Momentum P1 + P2 = P1’ + P2’ Ex: On roller coaster when ball bearing hits lead

ball

Cost Pipe Insulation: $1.00 Plywood & wooden dowels: $10.00 FUNnel: $1.00 50 caliber muzzleloader lead shot: $2.00 Ballbearing, PVC: $1.50 Clear Tubing: $8.50 Total Cost: $24.00

Fun facts

Length of time on project: 7 hours Total work and planning: 9 hours Adversity:

Planned roller coaster differed greatly from actual roller coaster

Friction was a momentum killer (haha) literally and figuratively