Magnetism Basics
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Questions and Answers

What are the most common ferromagnetic materials?

  • Neodymium and samarium
  • Aluminium, oxygen, and carbon
  • Chromium, copper, and iron
  • Iron, cobalt, and nickel (correct)

    • Which type of substances are weakly attracted to an applied magnetic field?

  • Paramagnetic substances (correct)
  • Antiferromagnetic substances
  • Diamagnetic substances
  • Ferromagnetic substances

    • What gives rise to a magnetic field according to the text?

  • Only ferromagnetic materials
  • Only magnetic moments of elementary particles
  • Both electric currents and magnetic moments of elementary particles (correct)
  • Only electric currents

    • Which materials are classified as having a more complex relationship with a magnetic field?

    <p>Antiferromagnetic materials, such as chromium</p> Signup and view all the answers

    What is responsible for most of the effects of magnetism encountered in everyday life?

    <p>Ferromagnetism</p> Signup and view all the answers

    O magnetismo é uma classe de atributos físicos que ocorre através de um campo magnético, que permite que os objetos se atraiam ou se repilam.

    <p>False</p> Signup and view all the answers

    Apenas poucas substâncias são ferromagnéticas; as mais comuns são ferro, cobalto e níquel e suas ligas.

    <p>False</p> Signup and view all the answers

    Materiais paramagnéticos, como alumínio e oxigênio, são fortemente atraídos por um campo magnético aplicado.

    <p>False</p> Signup and view all the answers

    Materiais diamagnéticos, como cobre e carbono, são fracamente repelidos por um campo magnético aplicado.

    <p>False</p> Signup and view all the answers

    Todos os materiais exibem algum tipo de magnetismo.

    <p>False</p> Signup and view all the answers

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