function o ver fashion
DESCRIPTION
Tiffany Sithiphone Wren Jackson Emily Cromer Ebony Lemons Stephen Marshall. Function O ver Fashion. Overview . Steps Pulley systems Inclines Track Mousetrap Applied concepts Conservation of momentum and energy Torque Projectile motion. Operation . - PowerPoint PPT PresentationTRANSCRIPT
Tiffany SithiphoneWren JacksonEmily CromerEbony LemonsStephen Marshall
Function Over Fashion
Overview Steps
Pulley systems Inclines Track Mousetrap
Applied concepts Conservation of
momentum and energy
Torque Projectile motion
Operation Golf ball rolls down inclines
Ball falls into cup which pulls white cup and
releases marble
Runs off ramp into funnel
Operation
Marble falls onto track and triggers
mousetrap
Mousetrap triggers
pulley which raises flag
Pulley releases marble to group 7
Calculations Step I: The Decline.
Conservation of linear/rotational energy: m₁gh=½m₁v ₁ ²+½I ₁ ω ₁ ²
Step II: The Pulley. Torque (about pulley): τ=Iα=I Conservation of momentum (inelastic
collision): m₁v ₁+ m₂v₂=(m ₁+ m₂)v’
Step III: The Curved Decline & Funnel. Conservation of energy: mgh=½mv²
Step IV: The Track & Mousetrap. Mousetrap and track—Conservation of
energy and elastic potential energy Step V: The Pulley & Flag.
Torque (about pulley) Conservation of rotational energy
Subscripts:1 golf ball2 cup & marblesp pulley
Setbacks Finding a ball heavy enough to execute
the first pulley Placing the cup in an accurate position for
the golf ball to fall into. Estimating the correct distance between
the curved decline and the funnel in order to project a marble into the funnel
Setting a precise amount of tension in the string on the second pulley to raise the flag
Summary
Factors that weren’t calculated affected movement of the project
Multiple test runs wore out certain parts of device
Simplicity is key