Mobile Project
Purpose: Construct a mobile and calculate the torque on each bar.
Mobile Specifications:
1 The mobile must have a minimum of 5 cross bars.
2 The pivot points for the crossbars can not be in the center of the bars.
3 There must be a minimum of 5 different values for the suspended masses
4 Each crossbar should be suspended by a single support. Bars must be able to fully rotate. Top
bar must be larger than bottom bars.
5 The supports (string) can not be rigid.
6 The mobile should be designed so that all of the crossbars are horizontal.
7 The mass of the supports should be small compared to the masses of the crossbars and the
masses.
8 The mobile must be appropriate to display in school
9 The mobile can not take up a space greater than a cubic meter
Report Specifications: (50 Points)
1 Title Page – Name, Team Member, Date, Period
_____ 5Pt
2 Presentations – Typed -12 Font double space
_____ 5Pt
3 Neat diagram of the mobile With masses and crossbars labeled,
(Hand drawings not accepted)
_____ 10Pt
4 CW and CCW Torques Calculated (Included Bars),
_____ 10Pt
Calculate % Difference
5 Explain Project and Torque - Include one research internet site
Cited in MLA form - > 300 words
_____ 20Pt
Mobile: (50 Points)
1 Construct the mobile according to your report
2 The mobile meets all the design criteria
3 Used Class time
_____ 10Pt
_____ 30Pt
_____ 10Pt
Total
____
5,3,1- Master points will be awarded to the most artistic mobile, as decided on by the vote of
class
How to Cite a Website in MLA
Structure: Last name, First name. "Article Title." Website Title. Publisher or Website, Day Month
Year Accessed. Web.
Example:
Cain, Kevin. "The Negative Effects of Facebook on Communication." Social Media Today RSS
N.p., 29 June 2012. Web. 02 Jan. 2013.
Make sure to:
Only include the URL if the source cannot be found easily.