Today we measured force and distance with our Lego Mindstorm. My partners and I had major difficulties with this lab. The body of the lego was not reading the acceleration, speed, time, height, grams or MGH, the only thing that was being measured was the mass and power level.
The total weight was 240 grams on the cylinder. Every time we measured the number of turns per wheel we would take off a certain number of weight, our group decided to take off 20 grams each time we measured. We had to do 4 runs measuring the mass and power level.
After we completed four runs did we realize that ours only measured the mass and power level and nothing else. It was then when we asked the Professor for help.
After she played with it, nothing worked. Then we switched batteries and finally computers and again we were getting incorrect calculations. That is when she finally decided to give us her data.
The speed (rpm) = 21.5 Battery discharge = 83, Mass 0.21 Power Level = 40 (remains the same for all), Time=8.4, Acceleration = 2.55, Height = 2.35 (for all) grams 9.8 = (remains the same for all), MGH = 0.48363 (remains the same for all).
The Speed Changed to 43.85 for the second run, 47.2 for the third run and 50.2 for the forth run. The Battery Discharge was 83 for the second run, 41 for the third, and 41 again for the forth. The Mass was .17 for the second run, .13 for the third run, and .09 for the forth run. Time was 4 for the second run, 3.74 for the third run, 3.658 for the forth run. Acceleration was 10.71 for the second run, 12.6 for the third run, and 13.72 for the forth run.