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m&m 8.2

Theory of Magnetism

QuestionAnswer
Protons neutrons Particles that make up the nucleus
Electrons A particle that orbits the nucleus. Spin produces magnetic field. Two of these put together will cancel out the magnetic field
Domain A group of aligned atoms with a single magnetic field
Domain theory States that magnetic substances are substances whose atoms line up to form magnetic domains
Ferromagnetic substances Some substances that have several unpaired electrons, making them strongly attracted to magnets. Cobalt and nickel
Temporary magnet A combination of magnetic substances
Permanent magnets Magnets made from magnetically hard materials
Magnetization by contact Magnetization of an object by touching it with another magnet
Magnetization by induction Magnetization by bringing the object within a magnetic field
Electromagnets Magnets that use electrical flows. Loses most of its magnetism when current is turned off
Superconductors Special materials that allow electricity to flow through them unimpeded
Maglev train Train that uses magnets to float on a magnetic field
Created by: Jer Stephens
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