Balanced and Unbalanced Forces
Ninth graders are introduced to Newton's First Law of Motion, acceleration and inertia. They assess and describe how forces, balanced or unbalanced, act on a a car and a crash-test dummy system that they build with wood, wheels and clothespins.
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New Review Forces and Motion: Basics
How is tug of war related to pushing a refrigerator? Here's a simulation connects these two activities with Newton's First Law of Motion. Four different simulations allow scholars to explore net force with tug of war, motion with pushing...
6th - 12th Science CCSS: Adaptable