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Br. Harris

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Before attempting these questions you should read the textbook section about simple machines (page 168-172). You will be doing a lab using a wheel and axle.


How do you calculate the efficiency of a simple machine? Your answer should be in the form either of complete sentences, or equations with an explanation of each symbol.


Describe an experiment in which you measure the efficiency of a wheel and axle. You should include the procedure, what variables you measure, and how to calculate the efficiency.


Any comments or clarifications may be added below.

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Last Update: by Bro. R.W.Harris