Further

1. Determine the consistency of your acceleration values and compare your measurement of g to the accepted value of g. Do this by repeating the ball toss experiment five more times. Each time, fit a straight line to the free-fall portion of the velocity graph and record the slope of that line. Average your six slopes to find a final value for your measurement of g. Does the variation in your six measurements explain any discrepancy between your average value and the accepted value of g?

2. Instead of throwing a ball upward, drop the ball. Predict what the three graphs will look like, then analyze the resulting graphs using the same techniques as this lab.

3. Do the ball toss experiment with a small steel ball. One would expect that air resistance would have a minimal effect for a small steel ball over a small distance (leading to a better value). Compare g from steel ball toss and the soccer ball toss using percent difference (writing a statement using percent difference).