1. Answer the bottom 6 on Cornell Notes

2. Properties of Magnets
A magnet is any material that exerts a magnetic force.
Magnets attract or repel other magnets.
One part of a magnet will always point north when allowed to swing freely

3. Magnetic Fields
The magnetic field is the area of magnetic force around a magnet
Allows magnets to interact without touching
Magnetic field lines are the invisible lines that map out the magnetic field of a magnet
Form complete loops, never cross
Always leave north and enter south
Distance between field lines indicate the strength of the magnet
Closer the lines, stronger the lines

4. Magnetic Domains
A magnetic domain is a region where the magnetic fields of all atoms are lined up in one direction
If the material is NOT magnetized, the magnetic domain points in random directions
If the material is considered a magnet, the magnetic domains are arranged in the same direction

5. Magnetic Materials
A ferromagnetic material is a material that shows strong magnetic properties
Behaves like a piece of iron
Iron, nickel, cobalt, samarium
Alloy magnets - magnets made from several different metals
Alnico - aluminum, nickel, iron, cobalt
Platinum and cobalt
Ferrite - mixture of substances that contain ferromagnetic elements
Most commonly used today
Brittle material but inexpensive