Rube Goldberg Device

Team A1 - 4Hua Li, Ricky Whitener, Daniel Tobin

Things we considered◦Inefficient and Complicated◦Displays Banner for last step◦Able to be set off, and able to set off another

device◦At least 5 different Steps◦Budget limit ($20)

Device Design

Made of plywood blocksConnected parts with nails, screws, and

hot glueSteps triggered by balls setting off

mousetraps and weight releasing a clothespin

Overview of Structure

Summary of Operation

Conservation of Energy

ProjectileMotion

mgh = ½mv2

(y-y0)=(tanΘ)(x-x0)-(g/2v02)(1+tan2Θ)(x-x0)2

Rotational Kinetic Energy(uniform disc)

Elastic Potential Energy

KE = ½Iω2

I = ½mr2 Angular momentum

L = Iω

Ue = ½k(Δx)2

The project was confined to specific dimensions

Accuracy and reliability of materials

Availability of materialsParts going off accidentallyBuilding supports for parts

Issues

Teamwork makes work seem like funThere is physics behind all the motion in

the worldIn order to maintain simplicity, we made

some assumptions in calculations.Hot glue is key

Conclusions