Tuesday, April 22, 2008

Procedure

To start this experiment, we made a data table to record all the data. To make this a fair experiment, we made all the shoes weigh the same weight. We made all the shoes weigh 500g, but you can change it if necessary. We put weights in the shoes, like 1 yen coins, marbles, and little weights.
Now we are ready to start this experiment. We placed the shoe on a desk and did our experiment, but the surface can be changed. Point being, the surface must be the same for all experiments to make it a fair experiment.We put a paper clip on the back of the shoe to measure the starting friction. We now hooked up a spring scale to the paper clip, and pull at a slow, constant speed. When the shoes starts to move a bit, stop pulling the scale and look at the measurements, and record on the table. We recorded the measurements by Newton(N). You must repeat this three times.
To measure the forward-stopping friction,we attached the paper clip on the front of the sneaker. We did the same procedure for the starting friction.
To measure the sideways-stopping friction, we attached the paper clip on the side of the sneaker this time. We did the same procedure as the starting friction. Do not forget to record the data.

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