Physics I Class 22

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Physics IClass 22
The Magnetic Field
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Magnetism in Ancient Times
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Peter Peregrinus
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William Gilbert
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Some Old (and Debunked)Ideas Linger On
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Magnetic Forces Between PolesOpposites Attract
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Why Is A Magnet Attracted toSome Materials
(Refrigerators)?
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What Happens If You Try to Separate North and
South Poles?
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Magnetic Field Lines
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Electromagnetism
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Units of Magnetic Field
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Class 22Take-Away Concepts
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Class 22Problems of the Day
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Class 22Problems of the Day
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Activity 22Introduction to Magnetic Fields
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Chinese Voyages of ExplorationAdmiral Zheng He
(1371-1435)