Second Mass-Pulley Experiment

In this experiment, we re-tested how mass is effected when the power of a pulley is changed, and vice versa.  For all nine trails, the results are below:

Trail 1:  Mass: .25kg;    Battery Discharge: 69 mV;  Power: 50%;  Time: 1.206 seconds;  Acceleration: 3769 RPM/s;   Speed: 36.34605 RPM

Trial 2: Mass: .25kg;  Battery Discharge: 69mV;  Power: 50%;  Time:1.208 seconds; Acceleration: 30.38061 RPM/s;  Speed: 36.69978 RPM

Trial 3: Mass: .25kg;   Battery Discharge: 83 mV;  Power: 50%;  Time: 1.211 seconds;  Acceleration: 31.7077 RPM/s;   Speed: 38.39802 RPM

Trial 4: Mass; .09kg;   Battery Discharge: 125 mV;  Power: 50%;  Time: 1.209 seconds;  Acceleration: 37.51389 RPM/s;  Speed: 45.35429 RPM

Trail 5: Mass: .09kg;  Battery Discharge: 111 mV;  Power: 50%;  Time: 1.209 seconds;  Acceleration: 38.9962 RPM/s;  Speed: 47.1464 RPM

Trial 6: Mass: .09kg;  Battery Discharge: 28 mV;  Power: 50%;  Time: 1.206 seconds:  Acceleration: 39.41963 RPM/s;  Speed: 47.54008 RPM

Trial 7: Mass: .05kg;  Battery Discharge: 69 mV;  Power: 50%;  Time: 1.206 seconds;  Acceleration: 42.85739 RPM/s;  Speed: 51.68601 RPM

Trial 8: Mass: .05kg;  Battery Discharge: 125 mV;  Power: 50%;  Time: 1.21 seconds;  Acceleration: 42.233 RPM/s;  Speed: 51.10193 RPM

Trial 9: Mass: .05kg;  Battery Discharge: 194 mV;  Power: 50%;  Time: 1.206 seconds;  Acceleration: 42.7428 RPM/s;  Speed: 51.54782 RPM

(Chart and data from experiment:) batterydischarge1a-2

For this experiment, we began to understand the relationship between mass and battery discharge, and how that changes at different power levels and different speeds.  For this experiment, the power level stayed at 50% throughout the entire experiment, but the mass changed from .25kg, .09kg, and .05kg.  This change in mass will change the battery discharge because the battery will have to do more work in order to get the mass to the top of the pulley.  This means that there is a positive correlation between force, mass and velocity (F= MV).  As you can see from the data above, the battery discharge rate is lower when the mass is higher.  Overall, this experiment was a good learning experience for us to see the relationship between things, and how they can change the entire outcome of the data.

 

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