![]() ![]() ![]() Because energy is lost through sound, heat etc as a ball hits the floor it will never bounce to, or higher than, the height it is dropped from. ![]() The smaller ball collides with the upward travelling basketball, making it bounce much higher than it would have done on its own.Įach ball is usually bounced separately first and the height of the bounce measured. As the basketball hits the ground, it bounces. They are dropped at the same time from a height of a metre or so. It involves taking two balls, one large (a basketball or football) and one small (a tennis ball) and holding them so that the tennis ball is directly on top of the basketball. Operation This is a demonstration of a physics principle called the 'conservation of momentum'. ![]()
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