Yesterday we worked with attraction and repulsion of magnets and finding magnetic and nonmagnetic materials (informally everyone did!), answered questions on homework that was handed back, worked with Earth's magnetic field, compasses, and balanced magnets, and had notes on magnetism.
Today we finished notes about electromagnetism (see previous posts for the link to all notes) and saw how compasses react to current-carrying wires. At the end of class students got a chance to interfere with moving electrons in a CRT monitor and make magnet-launchers with coils of current carrying wire.
Tomorrow we'll make motors (bring your magnets and a spare AAA, AA, C, or D cell battery), watch some laserdisc videos about magnetism and electromagnetism, and start exploring magnetic fields with iron filings.
Homework due Thursday: Read p. 438-444, p. 444#1-6
Start reviewing for electricity and magnetism exam, slated for next Wednesday. We will likely have a lab on Monday using electromagnets.
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