“The Revolting Blob”

Trey Carrier Stephen Phillips Aaron Messer Jordan Davis

Purpose Turn on a lamp shaped like a teddy bear

Overview

Ball is launched using elastic energy down a tube

Overview

Ball proceeds down a ramp with a slight incline towards a pivot

Overview

Ball hits a pivot which in turn hits another ball

Overview

Second ball rolls down another ramp towards a funnel

Overview

Ball goes through the funnel and down another ramp

Flicks a switch

Overview

The lamp turns on as a result of hitting the switch

Energy Conversions & Equations

0-1: Elastic KE

1-2: KE + PE + Eloss KE

2-3: KE + PE + Eloss KE

3-4: KE + Eloss KE

4-5: KE + PE + Eloss KE

5-6: KE + PE + Eloss KE

6-7: KE + PE + Eloss KE

1

23

45

67

Conclusions Elastic energy makes a good initial source of energy

Funnels are useful to create straight drops

The bottom of a chopped off funnel covered with duct tape makes a great golf ball holder

Device is pretty inefficient; the velocity of the ball hitting the switch is much smaller than the velocity of the ball being launched due to collisions and friction