Equipment:

• One solar cell
• One voltage probe
• One NXT adaptor
• NXT with light sensor
• One light source
• Labview VI  solarlab1.vi
• Ruler
• Colored film filters
• Excel sheet

As you can see, for this solar energy lab we used a  flashlight as a light source, a solar panel and different color light filters. The purpose of the lab was to perform several experiments to try to gain an understanding of the relationship between light intensity and the voltage output of the solar cell, as well as the relationship between the wavelength of light and the voltage output of the
solar cell.

First, we flashed the light on the sensor at different distances on the ruler. For example in the diagram, I and my partner choose 10cm, 15cm, 20cm, and so on. When we did this our results showed that as the wavelength decreased, the voltage would increase.

Then next was the fun part. We used the colored strips next to see what we can observe and how different it was to the non-colored results. I and my partners results kept getting all messy, For example, we kept getting negative results when we wasn’t suppose to. But at the end all were increasing.