Permanent and induced magnets

• What is a magnetic material?

  Any object influenced by a magnetic field
• What distinguishes an actual magnet from a magnetic material?

  An actual magnet produces a magnetic field
• Which elements are commonly known as magnetic materials?

  Nickel, cobalt, and iron
• Why is nickel considered a magnetic material?

  Only some pieces of nickel are magnets
• What do the first letters of nickel, cobalt, iron, and steel spell?

  NCIS
• What type of magnets are bar magnets classified as?

  Permanent magnets
• How do induced magnets develop their magnetic field?

  By being placed in a permanent magnet's field
• What happens to an induced magnet when removed from a magnetic field?

  It loses its magnetism
• What are magnetically soft materials?

  Materials that lose magnetism quickly
• What are magnetically hard materials?

  Materials that lose magnetism slowly
• What are the differences between permanent magnets and induced magnets?

  • Permanent magnets:
  • Produce their own magnetic field constantly
  • Induced magnets:
  • Develop a magnetic field temporarily
  • Created when placed in a permanent magnet's field
• What is the relationship between permanent and induced magnets?

  • The force between them is always attractive
  • Induced magnets have their own north and south poles