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Driving Question:
Why does a smaller ball, when simultaneously dropped on top of a larger, more massive ball, bounce significantly higher than the height from which it was dropped?
INTRODUCTION
Two balls are stacked on top of one another in a double-ball bounce experiment. The lower ball strikes the ground, bounces back, and slams into the upper ball.
This illustrates the conservation of momentum principle in physics. It entails holding two balls so that the tennis ball is directly on top of the basketball, one large (a basketball or football) and the other little (a tennis ball). They fall simultaneously from a height of around a meter. The basketball bounces when it lands, and the smaller ball strikes the basketball while it is moving upward, causing it to jump far higher than it would have otherwise.
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