Energy Lab

In class, we performed a series of experiments testing the relationship between mass, acceleration, and power. We designed the experiment using a pulley, strong, set of weights, and motor. The string attached to a motor on one side of the pulley, wrapping around it as a wheel turns. On the other side of the pulley the strong is attached to a hook that can hold weights.

For the first experiment we tested a fixed mass vs. modified power levels. We kept the mass constant at .19 kg for 4 trials. The power level began at 25%. The motor turned on, causing the string to wrap around the wheel and pull up the weights. There was an acceleration of 2.57 rpm/s. We conducted 3 more trials, increasing the power level by 25% each time. The results can be seen in the graph below:

For our second experiment we tested a fixed power level vs. modified masses. We kept the power level constant at 75%. We first texted this power level pulling a mass of .25 kg. The acceleration was 48.49 rpm/s. We conducted 3 more trials with masses of .21 kg, .17 kg, and .13 kg, respectively. The results can be see in the graph below: