Materials Science Quiz
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Questions and Answers

What type of bond involves the sharing of electrons between non-metals?

  • Covalent bond (correct)
  • Hydrogen bond
  • Ionic bond
  • Metallic bond
  • Which type of bond can conduct electricity and has high thermal conductivity?

  • Metallic bond (correct)
  • Covalent bond
  • Ionic bond
  • Hydrogen bond
  • Which characteristic is not true for secondary bonds?

  • Low strength
  • Formed from electrical dipoles
  • Polarization among molecules
  • High melting point (correct)
  • In a hydrogen bond, which atom is typically the more electronegative?

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

    What distinguishes ionic bonds from covalent bonds?

    <p>Ionic bonds form between metals and non-metals; covalent bonds form between non-metals.</p> Signup and view all the answers

    What is the primary characteristic of Van der Waals forces?

    <p>They are caused by fluctuating dipoles.</p> Signup and view all the answers

    Which type of materials are classified under crystalline solids?

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

    Which statement is true regarding noncrystalline (amorphous) materials?

    <p>They gradually soften upon heating.</p> Signup and view all the answers

    What happens during the process of polarization in Van der Waals forces?

    <p>The electrostatic field fluctuates, causing temporary charges.</p> Signup and view all the answers

    What is the glass transition temperature (Tg)?

    <p>The temperature at which a material begins the transition from solid to liquid.</p> Signup and view all the answers

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