Perment and induced magnets

• What is the definition of an actual magnet?


  An actual magnet is any object that produces a magnetic field
• How is a magnetic material defined?


  A magnetic material is any object that can be influenced by a magnetic field and has the potential to become a magnet
• Which elements are commonly referred to as magnetic materials?


  Nickel, cobalt, and iron
• Why is it important to note that not all magnetic materials are magnets?


  Because only some pieces of magnetic materials can actually be magnets
• What acronym can help remember the common magnetic elements?

  NCIS
• What type of magnets do common bar magnets represent?


  Permanent magnets
• What are induced or temporary magnets?


  Magnets that only have a magnetic field temporarily
• How is an induced magnet created?


  When a piece of magnetic material is placed in the field of a permanent magnet
• What happens to the magnetic field of an induced magnet when it is removed from the magnetic field of a permanent magnet?


  It loses its magnetism
• What are magnetically soft materials?


  Magnetic materials that lose their magnetism quickly
• What are magnetically hard materials?


  Magnetic materials that lose their magnetism slowly
• What are the key differences between permanent magnets and induced magnets?

  • Permanent magnets produce their own magnetic field all the time.
  • Induced magnets only have a magnetic field temporarily when in the presence of a permanent magnet.
• What are the common magnetic elements and their alloys?


  • Nickel
  • Cobalt
  • Iron
  • Alloys like steel