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d t 2 The total distance covered is proportional to time squared Velocity-time 1. Graph “vf ” vs. time 2. Find the slope (aavg) x vo v f t 1 2 Acceleration-time 1. Graph “a” vs. time 2. Find the slope (aavg) x v0 t at 1 2 2 Conclusion for Acceleration Lab The purpose of this lab experiment was to investigate the relationship between the distance and time for a ball rolling down an incline. To do this a ball bearing was rolled down an incline as Galileo did in the late 1600’s. This simulates the effects gravity had on an object just at a slower rate in order to better study it. The results showed that each successive time interval the distance the ball bearing traveled increased at a consistent rate. This rate of acceleration was .30 m/s every second according to the graphical analysis. The distance increased by the square of the time times this rate. For example, the second unit of time the ball bearing traveled 4 (square of 2) times farther than the first, the 3rd unit of time 9 times more and so on. Careful consideration to timing should be taken as well as to measurements to reduce the risk of human error in this lab. In order to further investigate this problem several other factors could be tested. The diameter and/or mass of the ball and/or the angle of the incline are such factors.
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