"The graph shows the height of different bounces of a basketball. Every time the basketball bounces the height will decrease. During the first bounces, the graph shows drastic change of the height of the ball. However in the last bounces, the graph shows less change comparing to the first bounces."
This project is to determine the height of different bounces of a basketball. The materials that we used are a basketball, measuring tape, chalk, chair, camera, and the person who drop the ball.
The method that we followed was simple. Using the chalk we must mark the wall every 10cm. Ask a tall person to drop the ball from a chair to get the starting point of where we drop it. Start recording as soon as the ball drops. Using iMovie, we can see the measurements in slow motion. Then we record the data into GeoGebra so we can determine how the graph will look like.
This project is about exponential functions. The starting point of the bouncing basketball is 250cm. This graph is called a decay because the line is going on a downward curve. For the slider called ‘b’, the number must be between 0 and 1 to make the line of best fit. For slider ‘a’, the number determines the vertical stretch of the line. The graph shows this because the ball loses it’s energy after the next bounces.
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