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→About Magnets
===About Magnets===
: There are three types of [[magnet]] you should know:*[[Permanent Magnet]]s can - These are [[magnet]]s which have a permanent [[Magnetic Field|magnetic field]] which needs [[energy]] to be removed.*[[Permanent Induced Magnet]]s, - These are [[Magnetic Material|magnetic materials]] which only become [[Induced Magnetmagnet]]s or when they are in the [[Magnetic Field|magnetic field]] of another [[magnet]].*[[Electromagnet]]s- These are a coil of wire wrapped around a [[Soft Iron|soft iron]] core. They only become [[magnet]]s when there is a [[Electrical Current|current]] passed through the coil of wire.: '''Magnets''' are [[attract]]ed to some metals[[metal]]s ([[Cobalt]], [[Nickel]] and [[Iron]]. Those metals [[metal]]s are '''magnetic''' but they are not [[magnet]]s themselves.
: '''Magnets''' have two [[poles]]; North and South.
: When two North [[Poles]] are placed next to each other two '''magnets''' will [[repel]] each other.
: When two South [[Poles]] are placed next to each other two '''magnets''' will [[repel]] each other.
: When the North [[Poles|Pole]] of one '''magnet''' is placed next to the South [[Poles|Pole]] of another '''magnet''' they [[attract]] each other.
: All [[magnet]]s have a [[Magnetic Field|magnetic field]] around them which influences other [[Magnetic Material|magnetic materials]].
===Examples===