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12 terms

magnetism and electromagnetism vocab

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magnetic
has the ability to exert forces on magnets or other magnetic materials
permanent magnets
material that keeps its magnetic properties even when it isnt close others
magnetic poles
all magnets have 2 opposites, north and south.
ferromagnetic
Substances that are strongly attracted to magnets
magnetic domains
groups of atoms with aligned magnetic poles
magnetic field
the region around a magnet where the magnetic force is exerted
compass
navigational instrument for finding directions
electromagnet
a temporary magnet made by passing electric current through a wire coiled around an iron bar
generator
engine that converts mechanical energy into electrical energy by electromagnetic induction
alternating current
electric current that changes its direction repeatedly
kilowatt
a unit of power equal to 1000 watts
kilowatt-hours
(KWH) the amount of electricity consumed by the appliances in your home