Bouncing ball gravity lab12/27/2022 ![]() ![]() ![]() Which object do you think has a higher kinetic energy: a car or an airplane?īecause gravity has the most time to do its job when the balls are dropped from 75 centimeters, these balls have the most kinetic energy by the time they hit the ground. The faster an object moves, the higher its kinetic energy. So what happens to potential energy when a ball is dropped? It turns into kinetic energy, or the energy an object has when it is moving. If an object is going to be dropped from high up in the air, it has lots of potential energy because the earth’s gravity has plenty of time to accelerate, or speed up, the ball when you let go of it-and the longer an object falls, the faster it gets. An object has potential energy because of its position. ![]() This is because the higher the starting height of the ball, the higher the ball’s potential energy. The balls dropped from 75 centimeters will bounce higher than those dropped from 50 centimeters, and the balls in the 50 centimeter trials will bounce higher than those in the 25 centimeter trials. It doesn’t get squished when it lands, so it has a harder time changing its direction from down to up. The marble, which is the hardest out of the three balls, has the least elasticity, so it does not bounce as high. When it does this, it pushes back on the ground shoots back up into the air. When the rubber ball hits the ground it gets compressed, or squished, and because it is very elastic, it quickly returns to its original shape. When all three balls are dropped from the same height, the rubber ball will bounce the highest because it has the greatest elasticity. On average, the rubber bouncy ball will bounce the highest, followed by the ping pong ball. Repeat steps 11 and 12 for the ping pong ball.How do you think the height at which the ball was dropped affects how high it bounces? Why? You should see a pattern emerging! BOUNCING BALL GRAVITY LAB TRIAL
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