2/27 MS Physics update and homework due 3/5

Hi folks,

Today we did a bit more with simple machines by taking a look at levers.  We talked about the three different kinds of levers and spend a good bit of time exploring how they work.

For homework this week take a look at the lever and pulley chapter in the enclosed ebook.  Do all the questions at the end of the Levers chapter and do questions 1 - 4 in the Pulleys chapter.  

ALSO answer the following questions.  (Answers are below)


1. What happened to the effort force as the fulcrum got closer to the load? 


2. What happened to the effort force as the fulcrum got farther from the load? 


3. What happened to the load force as the fulcrum got closer to the load? 


4. How about when the fulcrum got farther from the load? 


5. If you wanted to lift an object that you couldn't lift by yourself, where would you put the fulcrum? Close to, or far from the load? 



6.  Draw a picture of all three classes of lever. 




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