Mass Pulley Experiment

During a lab in class we used the Mindstorm to examine the relationship between force, mass and acceleration. This was done was using a pulley attached to a motor that moved the object up. The weight was on a string and the mass was switched up to examine the changes made to the time it took for the acceleration. By keeping a constant power level we tried a few different masses to compare. After a few trials my partner and I switched the power level.

We used the masses 0.21kg, 0.25kg, and 0.17kg. After several trials we began to switch the power levels We tested power of, 60,70, and 75. We then compared all the data and create graphs to distinguish the relationships.The first graph we made compared acceleration vs mass. We found there to be a downward trend line, this was because the larger the mass, the smaller the acceleration.

The next graph we created by acceleration vs force. This graph had an upward trend. If the power level increased then the rate of acceleration also increased.

The third graph was battery discharge vs mass. This graph did not have enough data points to distinguish a good relationship. Had there been more trials the graph would most likely show a relationship of the acceleration increasing as well as the battery discharge increasing. The last graph we did was power vs power level. This graph had an upward trend line. As the power level increased the power also increased.

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