With the Bowling Ball Pendulum Demonstration Kit for physical science and physics, demonstrate the conservation of energy. After holding a heavy bowling ball to your nose, release it and allow it to gracefully touch the tip of your nose.
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Demonstrate the conservation of energy with a real classic! Hold a heavy bowling ball pendulum against the tip of your nose. Release the bowling ball without moving your head, and allow it to swing through its pendulum arc. The students’ shock and fear will be very apparent as the fast-moving, heavy bowling ball makes its return trip toward your head. However, to the amazement of the students, the bowling ball gracefully touches the tip of your nose—dramatically showing the law of conservation of energy. Includes complete demonstration instructions and a reproducible student worksheet.
Concepts: Conservation of energy, potential energy, kinetic energy.
Time Required: 15 minutes