Permanent & Induced Magnets

• A magnetic object

  Any material or object that can influenced by a magnetic field and has the potential to become a magnet
• 4 magnetic elements

  Nickel

  Cobalt

  Iron

  Steel (alloy)
• Difference between a permanent and an induced magnet

  Permanent magnets always produce their own magnetic field

  Induced magnets only produce a magnetic field in the presence of another magnet
• How do you make an induced magnet

  Place a magnetic material into a magnetic field, this will induce it to temporarily have its own magnetic field.
• Is the magnetic force between an induced magnet and the permanent magnet that created it attractive or repulsive

  Attractive
• Difference between magnetically soft and magnetically hard material

  Magnetically soft materials lose magnetism quickly

  Magnetically hard materials slowly lose magnetism
• Is iron magnetically soft or hard

  Magnetically soft
• Is steel magnetically soft or hard

  Magnetically hard