At high heights, we got around 80 of initial height upon rebound, and a low heights, we also got around the same 80 of initial height upon rebound. Let's say that we have a ball that we dropped from a height of 10 meters, and every time it bounces it goes half as high as the previous bounce.
This was consistent regardless of height. In this exercise, you will collect motion data for a bouncing ball using a Motion Detector. Observations What we observed is that whenever we dropped the golf ball from any initial height, it would rebound at around 75 to 80 of the initial height. The relation above is generalized for any x number of bounces. Using polynomial regression, a bell-curve like distribution of the height vs. After zero, one and two bounces, the ball will attain a maximum height of h, hp, ( hp) p = hp 2, and so forth. An investigation into the mathematical and experimental correlation between the frequency of an oscillating plate, and the rebound height of a ball dropped onto it. Then on each bounce it rebounds to a fraction p of the previous maximum height. Drop the ball from various heights and measure the initial drop height, h i, and the maximum rebound height which I will call height final, h f. It’s easy to see where this model comes from: Suppose that the ball is released from height h. In other words, think all the way through your hypothetical lab before answering these questions. Where y represents the rebound height, x represents the bounce number, h is the release height, and p is a constant that depends on the physical characteristics of the ball used. Hypothesis: If I release a ball from a greater height then the rebound distance will be greater. three times from each drop height and measured the bounce height each time. Design an experiment to determine if this suggestion is true or not. Bowling ball lab physics answer key Here are a few things to keep in mind.
The relationship between the maximum height attained by the ball on a given bounce (which we will call the rebound height) and number of bounces that have occurred since the ball was released is an exponential A student suggests that there is a proportional relationship between the height from which a ball is dropped and its rebound height. +/-1cm will result in no point deduction. You must tell me the rebound height based on your graph. (not throwing, dropping) Therefore the bounce efficiency will decrease and decrease. In fact, the maximum height decreases in a very predictable way for most types of balls. Analysis What does our graph show us Is it linear or non-linear Is (0,0) a data point Does the slope tell us anything Does the area tell us anything Time to put your data to the test will choose a random height to drop the ball from. The ball dropped for a low height like 20 cm will give a lower rebound height than the higher drop heights until it reaches its terminal velocity when it is the fastest downward force it will have due to air resistance. When a ball bounces up and down on a flat surface, the maximum height it reaches decreases from bounce to bounce.
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