Magnets and Magnetic Fields
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Questions and Answers

What is the most notable property of a magnet?

  • It produces a force that pushes other magnets away
  • It generates electricity when in contact with other materials
  • It creates a visible magnetic field
  • It attracts or repels other magnets and ferromagnetic materials (correct)

    • What is a permanent magnet?

  • A magnet that only attracts rare-earth metals
  • A magnet that can be easily demagnetized
  • An object made from a material that is magnetized and creates its own persistent magnetic field (correct)
  • A magnet that requires an external magnetic field to remain magnetized

    • Which of the following are examples of ferromagnetic materials?

  • Iron, nickel, and cobalt (correct)
  • Plastic and glass
  • Aluminum and copper
  • Silver and gold

    • What are the two categories of ferromagnetic materials based on their magnetization properties?

    <p>Magnetically 'soft' and magnetically 'hard'</p> Signup and view all the answers

    What type of materials respond weakly to a magnetic field?

    <p>All other substances except ferromagnetic ones</p> Signup and view all the answers

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