Solar Energy

There are many alternative ways to get energy. Some examples are wind energy and solar energy. Anyone know why wind energy is so popular?It has a lot of fans!

Now that that’s over. We did an experiment last class involving light sensors. We attached our robot brain to the computer from Port 1. From port A we attached the light panel.

We then got flashlights and places them at varying distances away from the panel. The Lab View then recorded the data onto an excel worksheet (So Convenient!). After we did 5 trials, the first being no light, the next four were 5, 10, 15, 20 cm away. We had recorded the average and graphed the results. Here is what that looked like:

As you can see, the further the light was from the panel, the less voltage it produced.

Next we picked a constant distance (5cm) and put colored lenses over the light source. Then we tested which produced the most voltage. Shown here:

 

As we can see from this chart, the lighter the color, the more voltage. The dark blue gave the least voltage. The neon green actually gave more voltage than the regular light with no colored lens. I wonder why that is?

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