The heavy ball, on the other hand, is left behind with little energy and does not move much. This activity brought to you in partnership with Science Buddies. Already a subscriber?
Sign in. Thanks for reading Scientific American. Create your free account or Sign in to continue. See Subscription Options. Go Paperless with Digital. Materials A basketball or other large bouncing ball A tennis ball or other bouncing ball that is smaller and lighter than the bigger ball A ping-pong ball, smaller and lighter than both other balls optional A hard surface to bounce balls, preferably outdoors, surrounded by a large open area where a ball can fly without colliding with people or objects A helper optional Camera that films video optional Yard stick that measures meters optional Preparation Gather your test balls in the open area where you will perform the activity.
Note: If your ball does not bounce well, it might be deflated or old. You can add air to some balls like basketballs, soccer balls, volleyballs, etcetera. A bicycle pump with a special piece to inflate balls can help you do the job.
Other balls, such as tennis balls or baseballs, wear out with use. Why do you think a deflated ball does not bounce well? Why would a well-used tennis ball not bounce as well? Procedure First, hold the larger ball in front of you at shoulder height and let it fall without giving it a push. How high does it bounce back—almost up to your shoulder, your hip, your knee?
Repeat this a couple more times. Does the ball bounce back to approximately the same height each time? Repeat the test with the smaller ball. Do you think it will bounce higher or lower then the larger ball? How high does this ball bounce back?
Repeat a couple more times. Are your results consistent? Do you think the ball can bounce back higher than the height at which you released it?
Hold the larger ball in front of you at shoulder height like you did initially. Place the smaller ball on top of the larger ball so they just touch, and hold it there. You might need a helper to hold the balls in place.
In a moment, you will release the two balls at the same time. What do you think will happen? Will the larger fall faster or will both stay together as they fall? How will they bounce back?
Will a ball bounce higher, the same or lower than before? Chew on that thought for a moment and it will soon become clear. The physics of changing perspectives can be confusing. Take your time. There is no need to rush. Welcome back. Now as we collide with the tennis ball, energy is once again conserved. This means that the tennis ball will bounce up and away from the basketball at the same velocity as during the impact roughly 20 mph. The basketball bounced up with some velocity roughly 10 mph.
At the same moment, the tennis ball bounced away from the basketball at twice that speed. Now putting this together, we see that the tennis ball is flying up way from the basketball at 20 mph plus the velocity of the basketball that it bounced off.
This brings us to the conclusion that the tennis ball flies up into the air at 30 mph which is three times the velocity at which it fell to the ground! But why so high? It turns out that since the tennis ball flies up three times faster than it would without the basketball, that velocity translates into a lot of kinetic energy. As the tennis ball flies up into the air, gravity slows it down, converting all of that kinetic energy into potential energy.
And the more potential energy the ball, the higher it will go. In the case of our current experiment, the tennis ball will fly up to 9 times higher than it would without the help of the basketball. Now to switch things up, you should try placing the basketball on top of the tennis ball. Will the basketball bounce higher? Try adding a third ball like a ping pong ball on top of the tennis ball.
Can you figure out how fast the ping pong ball will fly up into the air? An asymptote is a value that a function will get infinitely close to, but never quite reach. Begin typing your search term above and press enter to search. Press ESC to cancel. Skip to content Home Research Paper Which ball bounces the highest experiment?
Research Paper. Ben Davis June 1, Which ball bounces the highest experiment? Why does a ball lose energy when bouncing? What happens to a balls energy when it bounces? How do you calculate how high a ball bounces? What energy does a bouncing ball have before it is dropped? What is the maximum height of the ball after the bounce? How many times will a ball bounce before coming to rest? How do you calculate energy loss in a bouncing ball? What is rebound height?
What is the effect of drop height on the rebound height of a ball? Why does a ball bounce higher when dropped from a greater height? How do you calculate a rebound ratio? How do you calculate ratios? What does exponential decay look like? How do geometric sequences apply to a bouncing ball?
0コメント