The purpose of the pulley lab is to find the relationship between force, mass, acceleration and time. We used a lego motor, a stand, string, some adjustable weight. This is the data we recorded during the process of the experiment.

According to the data we can tell that higher power level would cause higher acceleration, and of course with higher speed. And usually it takes shorter times compares to the lower power level with lower acceleration. The only thing I’m not fully understand was the relationship between acceleration and time. I realize the shorter the time spent pulling the weight the higher the acceleration was. I’m not entirely understand the connection between time and acceleration.