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“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.
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“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 1 2 3 • 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 4 5 6 7
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