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What we did: We were trying to prove that gravity provides constant
acceleration. We did this by using the ramp and marble to show the
effects of gravity in a slower way than just dropping something.
We used drops of water as a timing method. We could have used an
actual timer. One person said aloud every time a drop of water falls.
Another person makes a mark where the marble is when the say "drip".
As the marble goes further down the ramp, it travels faster in between
drops. This is because gravity is an acceleration acting on the marble
to make it go faster. |
