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PUNCH BALLOONS
National Standard: B2
“...If more than one force acts on an object ... then the forces will reinforce or cancel one another, depending on direction and magnitude ...” 1
Suggested Use
Demonstrate momentum by punching the balloon. It bounces away. But at some point, the restraining force of the rubber band kicks in, reversing momentum. Ask students what would happen without the rubber band. Discuss other examples of momentum (moving cars, running people, etc.).
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