EF 151 Final ProjectTeam 2

Christian Lindsey Anna Michael

B2

Meet Our TeamChristian 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

DesignMaterials used: wood, Newton’s cradle,

car track, pvc pipe, solo cups, hook eyes, fishing line, easy button, marbles, ‘easy button’,

& loveAdhesives used: duct tape, screws &

glue

Our DeviceStart: 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 thingThe other side of the windmill arm SMASHES!

the lever to start the trackThe marbles HURLS! down the track into a cupThe cup slides down to BOPP! “the easy

button”Finish: “That was easy!”

Equations

Potential-Gravitational Energy: mgh= ½mv²

Conservation of Momentum: m₁v₁=m₂v₂Mass Moment of Inertia: I= ½mr²Rotational Kinetic Energy: KE= ½Iω²Torque: τ=FdsinθConstant Acceleration: s ₂=s

₁+((v₂²-v₁²)/2a)

Difficulties

Difficulties: Calculations!Attaching everythingControlling the force of the marble as it

rolled down the track into the cupSuper glue catastrophes

“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’.