In my science class we had an experiment with solar cells. This experiment was based on photovoltaic effect. That is why sometimes a solar cell is called a photovoltaic cell. Basically a solar cell is a device that directly converts sun light into the electricity. Nowadays, this device is very popular, because people have become more concerned about environmental problems. Solar cells do not produce greenhouse gases, which are very harmful for our planet. Therefore people have started using solar panels much often to produce electricity.
For our experiment we had a solar cell, a flashlight, and different filters. The goal of our laboratory was to figure out how the distance between the solar cell and light affects voltage, and then how filters affect voltage. Here is the data from my experiment:
- Experiment (Distance vs Voltage)
Distance =0, Voltage =0.40978
Distance =5, Voltage = 0.20578
Distance =10, Voltage = 0.0789
Distance =15, Voltage = 0.03876
- Experiment (Filters vs Voltage), distance=0
Blue, voltage = 0.34765
Red, voltage = 0.23487
Yellow, voltage = 0.28796
Purple, voltage = 0.20967
In conclusion, our first experiment showed that the more far the light from the solar cell, less electricity is produced. The second experiment showed that different filters have different effects on voltage; for example, the blue one had less resistance to the light.
I really enjoyed this experiment a lot! I thought it was an interesting way to display solar energy. I really liked how you focused in on the solar energy aspect to this lab. Your data was neatly organized and helped to explain the experiment.