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These are parts of the experiment that you try to keep constant throughout an experiment so that they won't interfere with your test. Conveniently enough, this fraction of returned energy is nearly independent of how much energy the ball had to begin with. For an infinite number of turns, another geometric sequence formula can be used. WebThe Bounciest Ball Experiment Overview: In this lesson, students conduct a series of experiments with different balls to observe which bounce the highest and to see how they could make balls bounce higher. As there is more KE, more energy is converted into elastic potential energy, As there is more elastic potential energy, more energy is converted back into KE energy. The ball has reached its terminal velocity and cannot fall any faster (unless dropped in a vacuum). The first thing to check is how you are making your measurements. In reality, the ball experiences damping, where it loses potential energy and kinetic energy as it falls. It goes back to its initial vertical position after a period of time. As gravity remains the same the amount of work acting on the ball remains the same (apart from slightly more air resistance due to the ball travelling faster and so hitting more air particles per second, but the effect of this is negligible) and the ball travels further before stopping. Prediction reasons for variable control: The height the ball is dropped from will affect the height the ball bounces to due to the energy chain the ball goes through as it is dropped and bounces up again. If you did not observe a consistent, reproducible trend in your series of experimental runs there may be experimental errors affecting your results. How well a ball bounces deals with its coefficient of restitution. Bouncing Ball A totally accurate experiment would have a variation between results equal to zero however an experiment that is totally accurate needs to be conducted under conditions where air pressure and temperature remained constant, error produced by the ball falling on different parts of the linoleum floor tile (which was not totally even and thus produces inaccurate results) and human error removed by dropping the ball onto a uniform surface and using machinery to record the height to which the ball bounced to.