Sunday, April 05, 2009

Bobbing for magnets, take 2

Here's my second attempt at a groovy electromagnetic interaction demonstration. It's based on a setup I saw Don Walters use at The Naval Postgraduate School at an NCNAAPT meeting. He did a quick take, and I thought it was an improvement on The Exploratorium's Magnetic Pendulums.

As I often do, I milked this demo (and many tangents to it) for all I thought they were worth. To summarize, this demo shows electromagnetic interaction and slowly and carefully constructs observational evidence for Lenz's law.

Find the PDF here: Bobbing for Magnets PDF.

Find the answer key PDF here: Bobbing for Magnets Key PDF.

Find the preso here: Bobbing for Magnets QT. My presentations are rarely simple, linear expositions of the corresponding worksheet. You've been warned.

UPDATE: Fixed the link to the PDF. (Thanks Alby and Stephanie.) AND, I added a QuickTime Presentation for your enjoyment.


Stephanie Chasteen said...

The link for your PDF doesn't work, Dean.

Alby said...

The "Bobbing for Magnets" link isn't working.

Dean Baird said...


Converter said...

My PDF is not working