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Investigate the factors and the relationships between the factors, which affect how a ball bounces.
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PLANNING Aim Investigate the factors and the relationships between the factors, which affect how a ball bounces. Background Knowledge When a ball is lifted, work is being done to a ball. This gives it energy. The energy is known as potential energy. When the ball is dropped, gravity pulls it down; in other words, gravitational potential energy is lost. The potential energy begins to convert into kinetic energy. When the ball hits the floor, some energy is lost. This energy goes into the ball, creating the ball to be compressed. This type of energy is known as elastic energy. When the ball is compressed, the molecules are stretched apart in some places and are squeezed together in others. As they are pushed about, the molecules in the ball collide and rub across each other. When the ball bounces back as its rebound, it has kinetic energy and gravitational potential energy is gained. The amount...
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