# Merrily We Roll Along Lab Report

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Cowan 1 Merrily We Roll Along Lab Report In this lab we were investigating the relationship between distance and time for a ball rolling to and inclined plane. How will the distance and time be related for a ball rolling down an inclined plane? If the angle of the incline is greater, then the rate of acceleration of the ball will also be greater because it will be rolling down at a steeper incline. This predicted hypothesis is testable with an experiment. The materials needed for this experiment will be a ball, a meter long ramp, tape, a protractor, and stopwatch. For the first step you will set up the incline of the ramp at a 10° angle. Then you will mark, with tape, six points on the one meter ramp that are equidistant from one another. Next, using a stopwatch, you will roll the ball from each point three times each. After all the trials are completed for the six distances, find the average time it took the ball to reach the end from each point. Repeat this process for the incline of the ramp set at 15°. The independent variables of this experiment are the distances from which you release the ball. The dependent variables are the times at which it takes the ball to roll to the end of the ramp starting from each distance. Cowan 2 At the 10° incline of the ramp for the distance of 96 centimeters (cm), the average time was 1.04 seconds (s). For the first trial at this distance, the time was 1.09s, the second trial time was .88s, and the third trial time was 1.16s. For the distance of 80cm, the average time it took the ball to roll down the ramp was .86s. For the first trial the time was .86s, the second trial time was 1.01s, and the third trial time was .70s. For the distance of 64cm, the average time it took the ball to roll down the ramp was .62s. For the first trial the time was .61s, the second trial time was .59s, and the third trial time was .65s. For