In this experiment, my partner and I was using a solar cell, voltage probe, NXT with light sensor, NXT adaptor, a flashlight to see the voltages and light intensity under our different colored filters. We tried 0 distance up to 4 inches, and with different colored filter. Each trial take thirty seconds and we averaged the numbers to get the voltage.  After we collected the data on the computer, this is the graph that could possibly explain our results.

According to the graph, it’s obvious to realize that the lighter tones colored is easier to come through the filter and it’s more capable to receive more voltage in the solar cell. However, I couldn’t explain why does the 0 distance and 0 light could received that much voltage. It might because of the solar cell is not in a 100% dark space, the light in the classroom might received in the solar cell and caused voltage happened.