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Published byBernard Farmer Modified over 6 years ago
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Answer the Following Draw the domain of an unmagnetized bar magnet
Draw a magnetic field around a bar magnet Design an experiment which would allow you to see a Magnetic Field What are the two main categories of magnets? What is different about them?
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Breaking a magnet Dropping or hitting it hard Heating it up
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Magnetic Field Lines Field lines NEVER cross
Complete loop from North to South Closer lines- Stronger Force
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Biggest Magnet Around Earth
Strong magnetic field – so produces magnets from ferromagnetic materials
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Magnetic Declination Magnetic poles don’t always stay put
Secular Variation- the movement of the magnetic poles over time Magnetic Declination – angle between polar north and south and magnetic north and south
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Magnetosphere Solar wind – comes from sun Magnetosphere saves us
High speed particles shooting at earth Magnetosphere saves us Van Allen Belts – regions of protons and electrons moving at high speeds, trapped
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