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Demonstrate the concept of rotational equilibrium.
14 – 18
As a result of this activity, students should develop an understanding of:
Students build and test a mobile to explore the principals of rotational equilibrium. Students make predictions about the force on each of three levels of the mobile, work in teams to construct and test their predictions, analyze results and compare team results with those of the class. Designing the mobile requires the students to solve a set of two linear algebraic equations. Students solve the equations using three different methods: by substitution, by graphing the equations and finding the intersection, and by using determinants.
Curriculum alignment sheet is included in PDF.