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Today in Physics we had an exciting day. The agenda consisted of the class taking a quiz on frequency and tangential speeds, Mr. Manning passing back our graded Machine designs, and to finish up our Centripetal Forces Lab as a class. The quiz went alright for me because it wasn't too difficult so hopefully I will get the grade I am expecting. As for the Machine Design assignment I did well getting a twelve points out of twelve possible points. For the assignment we were supposed to create one elaborate machine that consisted of the six basic machines (inclined plane, wedge, screw, lever, wheel and axle, pulley). I created a machine that uses an inclined plane to easily slide the cork material onto the cutting platform. Then the cork material goes under a wedge that cuts it up into smaller pieces and moves along a belt of wheels. Then each small piece of cork is picked up by a screw and put into a wine bottle opening. Then a pulley is used to lift the finished product into a crate to be shipped off to a store. As for our lab we used a fishing rod type contraption. A metal rod has a force scale attached to it which has a string going up the rod with a rubber stopper at the end. One person would swing the stopper around at various lengths and different forces. Once the data was collected we could then figure out the tangential speeds at different lengths or string.