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Mobile Project. Cherie Lehman WLHS. Mobile Project. Mobiles Inspired by Work of Alexander Caulder Mobiles -- Blend of Physics and Art Mobile Construction -- Torque Assessment. Alexander Calder.

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mobile project

Mobile Project

Cherie Lehman

WLHS

mobile project1
Mobile Project
  • Mobiles Inspired by Work of Alexander Caulder
  • Mobiles -- Blend of Physics and Art
  • Mobile Construction -- Torque Assessment
alexander calder
Alexander Calder
  • Received a degree in mechanical engineering but soon after decided to pursue a career as an artist.
authentic assessment
Authentic Assessment
  • Students apply the concepts learned in the unit
    • Torque
    • Balance
    • Center of Mass
    • Pivot
project details
Project Details
  • Project counts as an exam
  • Design plan must accompany mobile
    • Diagram of mobile showing locations of weights for each tier
    • Torque calculations for each tier
    • Mobile itself
mobile requirements
Mobile Requirements
  • Your mobile should have a theme
    • For example, a mobile with an astronomical theme would contain stars, planets, comets, etc.
  • Each mobile must contain 5 tiers
  • At least 1 tier must contain 3 masses
  • At least 2 tiers must be pivoted from a point other than the cg of the support rod
  • You must include a layout of the mobile design
design layout for each tier
Design Layout for Each Tier
  • the mass of the support rod
  • the masses of the hanging ornaments
  • the lengths of the respective lever arms
  • the location of the pivot
  • Mathematical proof that the torques are balanced
design plan
Design Plan
  • If the mass of your support rod is significant compared to the masses of your hanging ornaments, be sure to include the torque exerted by the weight of the support rod in your calculations.
mobile grading scheme
Mobile Grading Scheme
  • 25 pts. for your design plan
  • 25 pts. for the 5 tiers -- 5 pts. for each tier
  • 5 pts. for one tier containing 3 masses
  • 10 pts. for two tiers pivoted at point other than cg of support rod
  • 10 pts. for proper balance -- i.e. horizontal orientation of supports
grading scheme continued
Grading Scheme Continued
  • 10 pts. for theme
  • 15 pts. for artistic design and aesthetic value
  • BONUS: 5 pts. bonus for science theme
  • BONUS: 5 pts. bonus for extra tier
  • 100 pts. total
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