Grade 12: Fundamentals of Magnetism
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Questions and Answers

What is the term for the process of making a material temporarily or permanently magnetic?

  • Electromagnetism
  • Magnetization (correct)
  • Magnetic induction
  • Ferromagnetism

    • What is the end of a magnet that will point to the north when suspended freely?

  • Magnetic axis
  • North pole (correct)
  • South pole
  • Magnetic center

    • What are the materials that are attracted by a magnet?

  • Paramagnetic materials
  • Diamagnetic materials
  • Magnetic materials (correct)
  • Electromagnetic materials

    • What is the term for a material that is not attracted by a magnet and cannot be made into a magnet?

    <p>Nonmagnetic material</p> Signup and view all the answers

    What is the most common natural magnet?

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

    What is the term for the portions in a magnet where the magnetic force is greatest?

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

    What is the unit of magnetic field in the SI system?

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

    What is the condition for a charge to experience a non-zero magnetic force when placed in a magnetic field?

    <p>The charge must be moving and the velocity of the magnetic field must have a component that is perpendicular to the charge.</p> Signup and view all the answers

    What is the direction of the magnetic force on a charge in a magnetic field?

    <p>Perpendicular to the magnetic field</p> Signup and view all the answers

    If the proton in the sample problem is replaced by an electron, will it experience the same maximum force?

    <p>No, because the charge and mass of the proton and electron are different.</p> Signup and view all the answers

    What is the magnitude of the magnetic field in the sample problem?

    <p>2.0 µT</p> Signup and view all the answers

    What is the unit of measurement for the magnetic field in the sample problem?

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

    What is the primary characteristic of diamagnetic materials?

    <p>They are repelled by magnetic fields</p> Signup and view all the answers

    What is the purpose of Figure 6?

    <p>To show the alignment of magnetic domains in a diamagnetic material</p> Signup and view all the answers

    What is the force experienced by a charged particle moving in a magnetic field?

    <p>F = qv x B</p> Signup and view all the answers

    What is the direction of the magnetic force on a moving charge?

    <p>Perpendicular to both the velocity and magnetic field</p> Signup and view all the answers

    What is the relationship between the velocity of a charge and the magnetic field?

    <p>vB sinθ = F</p> Signup and view all the answers

    Which of the following materials is NOT diamagnetic?

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

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