1. EF 151 Final Project Team 2 Christian Lindsey Anna Michael B2

2. Meet Our Team Christian Neveu- He was out main builder and equation editor Michael Maxwell- in charge of calculations. Lindsey Huff- constructed the report and did the duct-taping Anna Green- made the powerpoint and did main organization of this presentation

3. Design Materials used: wood, Newton’s cradle, car track, pvc pipe, solo cups, hook eyes, fishing line, easy button, marbles, ‘easy button’, & love Adhesives used: duct tape, screws & glue

4. Our Device Start: Marble rolls down to SLAM! a marble to start a Newton’s cradle. Newton’s cradle SMACKS! a wheel Wheel BANGS! an arm of a windmill thing The other side of the windmill arm SMASHES! the lever to start the track The marbles HURLS! down the track into a cup The cup slides down to BOPP! “the easy button” Finish: “That was easy!”

5. Equations Potential-Gravitational Energy: mgh= ½mv² Conservation of Momentum: m₁v₁=m₂v₂ Mass Moment of Inertia: I= ½mr² Rotational Kinetic Energy: KE= ½Iω² Torque: τ=Fdsinθ Constant Acceleration: s ₂=s ₁+((v₂²-v₁²)/2a)

6. Difficulties Difficulties: Calculations! Attaching everything Controlling the force of the marble as it rolled down the track into the cup Super glue catastrophes

7. “That was easy!” As a way to showcase the skills we have learned this semester in EF 151,our group of four has created a long and complicated Rube-Goldberg machine that activates an electronic device, in only a few weeks. With hard work and a $20 budget, we have successfully created a device to activate the infamous Staple’s ‘easy button’.