Monday, October 27, 2014

Spring Potential Energy

Springs! Springs are awesome and useful. Today we briefly introduced springs (we'll be doing more with them later) and derived an expression for the potential energy stored in a spring.

Here are the notes: Spring Potential Energy

Note that we derived Hooke's Law  by graphing F vs. x, either by using a physical slotted mass/spring set or with the PhET simulation (depends on availability of materials).

We also used these awesome direct measurement videos by Peter Bohacek:
Cart on ramp with spring
Cart launched by spring

Your homework tonight is Chapter 5 (p.160) #35, 39, 67

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