Balanced and Unbalanced Forces

Ninth graders are introduced to Newton's Laws of Motion, with a focus on the First Law. In groups, they build a test car using compact discs as wheels to determine how the forces act on the car in a crash. They also develop a restraint system for their crash-test dummy and present to the class how it works, the results of use of it in the car and what improvements need to be made.

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Project-Based Learning
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