Permanent and induced magnetism

• What is a magnetic material?

  Any object influenced by a magnetic field
• What defines an actual magnet?

  Produces a magnetic field
• Why are not all magnetic materials considered magnets?

  Only some can produce a magnetic field
• Which elements are commonly known as magnetic materials?

  Nickel, cobalt, and iron
• What is the significance of the acronym NCIS in magnetism?

  It helps remember nickel, cobalt, iron, steel
• What type of magnets produce their own magnetic field all the time?

  Permanent magnets
• How are induced magnets created?

  By placing magnetic material in a magnetic field
• What happens to an induced magnet when removed from a magnetic field?

  It loses its magnetism
• What are magnetically hard materials?

  Materials that lose magnetism slowly
• What are magnetically soft materials?

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

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

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