Today we used your lab results to get the equation for the period of a simple pendulum. We also watched a fun pendulum video and mentioned physical pendulums.
Notes: Pendulums
Here are the links for the videos we watched:
Harvard Natural Sciences Lecture Demonstrations: Pendulum Waves
Memo Akten: SHM #2 Excerpt
Somewhere in here we also talked about speed walking and pendulums, so here is a video of speed walkers.
Here is a great video that explains how patterns are made using a pendulum with different periods in different dimensions of motion: YouTube: Sand pendulums - Lissajous patterns - part one // Homemade Science with Bruce Yeany. The explanation of how they work starts at 4 minutes in.
Practice problems: p. 468 #34, 35, 39
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