Results
This experiment was done in order to test if a basketball is bounced on three different surfaces then the hardest surface will require the least amount of energy, because the surface will absorb the least amount of energy becoming the most efficient surface to use. Overall, the results showed that my hypothesis was correct, that the harder the surface the less amount of energy required to dribble the basketball.
For each trial is was critical that the ball was bounce three times at the three different heights (100, 60, and 20cm above the ground). If the bounces were not starting at those heights than the data would be completely inaccurate. It was also very important that the bounce was recorded by the video camera/ phone so that way the bounce can be recorded at the correct height on the graphs. The baseline in the experiment was when the ball was bouncing at 100cm above the ground on the different surfaces.
In trial one, all of the results supported the hypothesis. The results of the bounce heights for 100cm above the ground for my first surface which is carpet were 62cm, 63cm, and 61cm bounce height. After being dropped from 60cm above the ground the results of the bounce heights were 45cm, 42, and
…show more content…
Also, the average time to ground for all three were fairly close all three were 1.01 seconds (hardwood), 1.02 seconds (carpet), and lastly 1.03 seconds (concrete). Averages for the trials at 60cm are 43.3cm (carpet), 47.6cm (hardwood), and 61.3cm (concrete), and the average time to ground were .72 seconds (carpet), .64 seconds (hardwood), and .65 seconds (concrete). Finally, the average bounce heights for 20cm are 26 (carpet), 30.6cm (hardwood), and 33cm (concrete). The average time it took to get to the ground is .41 seconds (carpet), .39 seconds (hardwood), and .28 seconds