Magnetic poles

Magnetic poles

Certain materials, such as iron, can experience magnetic forces.
These are non-contact forces.
Magnetic forces are strongest near magnetic poles.
- Poles are labelled north or south depending on the direction they would eventually face if the magnet could freely turn.
- Every magnet must have one of each pole. Both poles are as strong as each other.
- Like poles will experience a repulsive force when brought near each other while unlike poles will attract.
Permanent magnets are those that produce magnetic fields. Induced magnets are materials that become magnets when in another magnetic field.
- The poles of the induced magnet will always be so that it feels an attractive force in the field. Repulsive forces can only be experienced by two permanent magnets.
- When an induced magnet leaves the magnetic field, it will lose its magnetism very quickly.

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