Inside a MagnetChapter 1 Section 2

Pages 14 - 19

Objective: Explain how the alignment and misalignment of magnetic domains affect magnetism.

Atom: The smallest particle of an element

Element: One of about 100 basic substances that make up all matter.

Draw and atom here:

Structure of an atom:*Nucleus: The center region of an atom*Proton: A particle that carries a positive charge*Neutron: A particle that does not carry a charge*Electron: A particle that carries a negative charge

A spinning electron produces a magnetic field thatmakes the electron behave like a tiny magnet in anatom.

Magnetic Domains: A grouping of atoms that have their magnetic fields aligned.

Unmagnetized Material Magnetized Material

In a magnetized material, all or most of the magnetic domains are arranged in the samedirection.

Ferromagnetic Material: material that shows strongmagnetic properties.

*Examples: IRON, NICKEL, COBALT, & ALNICO

Temporary Magnet: A magnet made from a materialthat easily loses its magnetism.

Permanent Magnet: A magnet made from a materialthat keeps its magnetism for a long time.

One way to destroy a magnet is to drop it or strike it hard. If it is hit hard, its domains can be knocked out of alignment.