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Today Mr. Manning was out and we had Mr. Brosey as a substitute. We picked up page 36, The Machine Design Worksheet and Mr. Brosey explained to us that there are 5 simple machines. There's the pulley, which uses a wheel and a rope to pull something up or down. The lever which is a stiff bar that lays on a fulcrum to help get leverage on an object. The wedge, which has at least one slanted edge to break through material. A wheel and axel which is what it says a wheel with an axle attatched to help roll objects. An incline plane which is a slanted surface going from a higher point to a lower point, and a screw which is used to hold materials together. We then were told to make a Rude Goldberg which is an elaborate design using all 5 simple machines to complete a simple task in a very intricate manner. We were given the rest of the class to complete our design with our groups, but each of us need to have a design to hand in when it is collected.We also had to finish the roller coaster worksheet that we were doing in class yesterday. We will be having a test on Monday on everything we have learned on compensation of energy and our review guide will also be due that day.

For more information dealing with simple machines and there purposes and uses, go to this website: http://sln.fi.edu/qa97/spotlight3/spotlight3.html.



Rube Goldberg