Wednesday, December 7, 2011

Second Trial!!


Our second trial defiantly did not go as good as our first. We decided to use to small wooden wheel instead of the CD's, because they had less friction between the wheel and the axle, which made the car go faster. Our mistake with using the wooden wheel was that we still did not have them on perfectly straight. Because of this there were two problems: the car could easily turn, and it had a slight up and down motion to it. When we tested the car back at home, the car did not urn as badly as it did in the school's hallway, but we did give it a few taps at home to make it go straight. If our ballon car had continued to straight in the hallway, it probably could have covered a farther distance. Because it took a sharp turn however, on the second trial of our balloon car test, we only went 3.3 meters:(

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