In this unit we are going to continue our study of the motion of objects by learning how machines help us move objects. In the process we will learn what is meant by "work" and how machines make doing work easier.
Most of our instruction will be video lessons and worksheets, supplemented by direct instruction and class discussion.
SPS8e: Calculate amounts of work and mechanical advantage using simple machines.
Specific assignments:
Assignment 1: (Class Activity) Watch two short videos on "Simple Machines". Take notes, and answer the questions on the Simple Machines worksheet which includes copies of the questions to the Video Quiz given at the end of each of the videos. (Click here to see worksheet)
Assignment 2: Mechanical Advantage -- mini lecture. Take notes and then complete the appropriate problems on the Work, Power, and Simple Machines worksheet. (Click here to see worksheet)
Watch this video on how to see how to calculate the Mechanical Advantage of a pulley.
Click here to view power point presentation that summarizes how to calculate the Mechanical Advantage (MA) of simple machines.
Assignment 3: Work, Power, and Efficiency - mini lecture. Take notes and complete appropriate problems in the Work, Power, and Simple Machines worksheet.
Here is a good description of what we mean by "WORK." Watch this video. Write down the formula for work.
Click here to view power point version of the mini-lecture explaining how to calculate Work, Power and the Efficiency of a machine. Take notes and complete the problems in the worksheet that apply.
Quiz: Work. Power, and Simple Machines. Quiz will include some calculations. Formulas will be provided.
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