Metals Composition and Characteristics
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Questions and Answers

Which of the following is a characteristic of ceramics mentioned in the text?

  • Lightweight properties
  • Low resistance to high temperatures
  • Brittle nature under compression (correct)
  • High electrical conductivity

    • What property of ceramics makes them suitable for applications in harsh environments?

  • Low resistance to heat
  • High thermal conductivity
  • Resistance to high temperatures (correct)
  • Low strength under compression

    • What sets polymers apart from metals and ceramics in terms of physical properties?

  • Soft and ductile characteristics (correct)
  • Brittle nature
  • High thermal conductivity
  • High strength and density

    • Why are polymers considered excellent insulators?

    <p>Very low electrical and thermal conductivity</p> Signup and view all the answers

    What is a key characteristic of metallic elements mentioned in the text?

    <p>Exhibit luster</p> Signup and view all the answers

    How do nonmetallic elements like carbon, nitrogen, and oxygen affect the properties of metals?

    <p>Can enhance certain properties of metals</p> Signup and view all the answers

    Which element is commonly added to iron to form steel, enhancing its strength and hardness?

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

    What is the primary composition of ceramics according to the text?

    <p>Compounds of metallic and nonmetallic elements</p> Signup and view all the answers

    Which industry benefits from the versatility of metals due to their combination of metallic and nonmetallic elements?

    <p>+Automotive</p> Signup and view all the answers

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