In class, we attached a flashlight's battery to the NXT device which was then attached to the computer via USB. The generator inside the flashlight's tube was a magnet that moved back and forth through a coil of wire. The more the flashlight itself was shaken, the more voltage was produced. The Labview program accurately measured the produced voltage over 30-second intervals. After saving the acquired data, we were able to convert the information into an Excel spreadsheet file for easier analysis.By manually counting the number of shakes made over the 30-second intervals, we were able to plot out the sum of the squares of the voltages measured versus the amount of times the magnet was shaken. After plotting out the data from three different "shake trials," it was clear that the faster the flashlight's magnet was shaken, the higher the measured voltage was. The scatter plot below shows our findings:
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