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TEST KEEP CLOSED

THERMAL PROPERTIES OF MATTER

Thermal Expansion

Thermal Conductivity

The Bowling Ball Pendulum

The bowling ball pendulum is a dramatic illustration of energy conservation. A bowling ball is suspended from a rope attached to the ceiling of the lecture hall. The length of rope is adjusted such that the ball may swing up to the demonstrator’s nose when his back is against a wall. The ball is released FROM REST in this position, swings across the room and back to its initial position, without inflicting injury on the demonstrator.

The Bowling Ball Pendulum