• Magnetic poles
  • North attract south
  • same repel
  • All magnets have 2 poles
• Magnetic Domains
  • cluster of aligned atons
  • every spinning electrons == magnet
  • when all spin together, it makes a strong magnet
  • 
  • left == unorganized
• Making Magnet
  • Organize electrons to rotate in one direction
  • stroking motions of another magnet can do it
• KE can unmagnetize a magnet (heat/impact)
• Magnetic Fields
  • produced by motion of electric charge
  • revealed by magnetic lines
  • go out of one pole and curve to other pole
  • 
  • 
• Earth
  • South pole is north magnetic and vice versa
• thumb rule
  • fingers == magnetic field
  • thumb == direction of current
• Magnetic field flows around electric current
• Looping electric current makes the magnetic field stronger
  • 
• Creates electromagnet
  • Uses electric current to create a magnet
  • 
  • w/out magnetic current, not a magnet
  • can use to move things
• Magnetic fields moving charged particles
  • 
  • experiences deflecting force because the current has a magnetic force