In class we spent more time with robots. We experimented with generators this week, and found ways to generate electricity using flashlights. Each flashlight had a magnet inside it that could be moved up and down with a simple shake of the wrist. The simple movement caused a change in the magnetic field. The bigger the change, the bigger the increase in energy.
We connected the flashlight with a voltage probe and NXT adapter. After that we shook the flashlight in 30 second intervals. The first time we shook it at slow pace, and then increased the speed each time for a total of five sessions. The computer collected the data.
The rise in energy from changed in magnetic field
Through excel, we were able to organize this data from each interval.
From this you can see that we started with 0 shakes, then moved to 14, then 21, then 45 and finally 70 shakes on the final session. By highlighting our number and pressing sumq we were given the total voltage generated.
What is interested is that there was not a constant increase when it was plotted onto the graph. Each of our sessions produced a higher voltage than the previous session, so which matched the law. However, the line that was graphed shows a rise in electricity generated.