Tuesday, March 8, 2011

The Force of Friction

Ok everybody, this blog is going to be the dummed down version of class today. Sorry to all the really smart people. Today Mr. Dickie set up a ramp and a cart on his desk. He then pushed the cart down the ramp. Then, he took a wooden block and placed it on the ramp. It didn't move. After that, Mr. Dickie preceded to ask us several questions about why the cart slid down the ramp, and why the block didn't. I'm pretty sure the cart slid down because it had these four really cool things on the botton called wheels, yeah, I know, interesting stuff. Because the cart had wheels, the force of friction wasn't really a factor. And because, shocker, the wooden block didn't have wheels, it couldn't overcome the force of friction. When then did a lab to test how mass affects friction. We took a forceometer, a block, several weights, and a board to test this(no Mr. Dickie we weren't screwing around the entire time). The block was then attached to the forceometer and pulled five times. Probably more than that but all you needed was five. A different weight was placed on the block every time it was pulled, just so nobody ended up with five of the same data points. After this, we graphed our data, used our handy dandy calculators to find and equation, and then wrote up a conclusion. "And for those still listening, I'm Ron Burgundy, you stay classy San Diego."

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