The random motion of jiggling molecules is a measure of All of the organized motion of the falling ball becomes the random motion of jiggling molecules. Rather than bouncing, it hits the floor and flattens. In the game of hockey, the pucks are frozen before every game to reduce their bounciness.Įxactly what happens to these molecules as they stretch and squeeze depends on what the ball is made of. Or try this experiment with hockey pucks. The refrigerated ball should bounce about 70 percent as high. Think about those catches players make near the fence temperature could make the difference between a home run and a long out.įor slightly better results, try this same experiment with golf balls. ![]() ![]() While this is not that dramatic, it's enough to see that temperature can be a factor. The cold ball should bounce about 80 percent as high. You should notice that the room temperature ball bounces slightly higher. If you have two baseballs, try putting one in the freezer for an hour and leaving the other at room temperature. ![]() You can also change how a ball bounces by changing its temperature. Try comparing a baseball to a golf ball or a tennis ball. To measure the bounciness of a ball, you can try dropping it from a height onto a hard surface. This is due, in large part, to their construction. Baseballs have less bounce than tennis balls or golf balls.
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