Magnetism. Invisible fields of force
Description
This Science Screen Report studies the physical force known as electromagnetism and how it encircles, interacts with, and is generated by matter. Demonstrating attractive and repulsive forces with iron filings suspended in liquid, the program explains the significance of a magnet's poles and why some materials are more magnetic than others. The electromagnetic fields of the Earth and Sun are also explored, with attention to magnetism's role in animal migration, the aurora borealis, and solar storms. Animated sequences reinforce essential concepts.
Runtime
14 min
Subjects
Genre
Date of Publication
[2006], c2001
Database
Films on Demand
Direct Link
https://www.remote.uwosh.edu/login?url=https://fod.infobase.com/PortalPlaylists.aspx?wID=102638&xtid=34292
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