This week, we did an experiment with a pulley system that was hooked up to the NXT battery.  Through this experiment, we were able to experiment with different masses how much battery discharge was used, the acceleration of the weights being pulled up, the speed, and the time.  This experiment is important to our class because when working with the NXT battery and robotics, and learning about mass and battery discharge and their relation to acceleration, etc. is very important for understanding how they all relate to one another.  At the end of this experiment, we realized that the more power used, the more battery discharge is put out.  Below are the results of our trials.

SAME MASS, DIFFERENT POWER LEVELS

Trial 1: Mass: .25kg;        Speed: 74.851 rpm;    Time: 1.454 seconds;    Acceleration: 51.4794 rpm/s;    Battery Discharge: 14 mV;  Power: 25

Trial 2: Mass: .25kg;    Speed: 37.6202 rpm;    Time: 3.398 seconds;   Acceleration: 11.0713 rpm/s;  Battery Discharge: 111 mV;  Power: 50

Trial 3: Mass: .25kg;   Speed: 106.349 rpm;  Time: .84 seconds;  Acceleration: 126.606 rpm/s;   Battery Discharge: 70 mV;  Power: 100

Trial 4: Mass: .25kg;  Speed: 110.657 rpm;  Time: 1.01 seconds;  Acceleration: 100.506 rpm/s;  Battery Discharge: 125 mV;  Power: 120

Estimated Travel Distance: .03m

DIFFERENT MASS, SAME POWER LEVEL

Trial 1: Mass: .20kg;  Speed: 72.2697 rpm; Time: 1.755 seconds;  Acceleration: 41.1793 rpm/s;  Battery Discharge: 111 mV;  Power: 75

Trial 2: Mass: .24kg;  Speed: 73.7439 rpm;  Time: 1.851 seconds;  Acceleration: 39.94 rpm/s;  Battery Discharge: 97 mV;  Power: 75

Trial 3: Mass: .17kg;  Speed: 81.6956 rpm;  Time: 1.73 seconds;  Acceleration: 47.2229 rpm/s;   Battery Discharge: 69 mV;  Power: 75

Trial 4: Mass: .09kg;  Speed: 90.6218;  Time: 1.635 seconds;  Acceleration: 55.4262 rpm/s;  Battery Discharge: 69 mV;  Power: 75

Estimated Travel Distance: .03m