First, I forgot my phone today, so the Plickers problem we were going to do from last night's suggested homework has been pushed to next class. This means there may be more than one Plickers problem next class.
Today we very briefly talked about machines and efficiency.
Notes: Machines
Your suggested homework is a little half sheet called HW: Machines.
On Monday/Tuesday nest week you will be completing a lab. The goal is to answer the question: does the angle of a ramp affect its efficiency? If so, what is the relationship? How you answer this question is up to you, so think about it over the weekend.
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