Our latest experiment in Science class was creating electricity using a flashlight and a solar cell. We held the flashlight at different distances from the solar cell, and the light would create the electricity.
Screenshot of the electricity created
Presumably, the closer the light was to the solar cell the more electricity and the further away, the less electricity. We did the first run with no light, which had an average of .108 volts. We followed up with four more runs, from 1 inch away, 2 inches away, 3 inches away and 4 inches away. However, what we got was not a downward trend as we expected. We came to the conclusion that the distances were too close together for the cell to register a difference. So, we redid our experiment at 1 inch(.331 average voltage), 3 inches(.253 average voltage), 10 inches(.167 average voltage) and 20 inches(.139 average voltage). This gave us the results we were looking for, with a downward trend each time we moved the light further away.
The downward trend
The last thing we did was use different colored filters over the solar panels. What we found was that different colors reflect different frequencies. When we used the blue filter we got an average voltage of .320. When we used the green filter we got an average of .220. Lastly, when we used the pink filter we got an average of .368. Here’s a picture of our results organized into a bar graph.
