Nanomaterials: Introduction and Properties
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Questions and Answers

What is the approximate size range for nanomaterials?

  • Less than 1000 nanometers
  • Less than 100 nanometers (correct)
  • Less than 100 millimeters
  • Less than 10 millimeters

    • What are some of the unique properties that emerge at the nanoscale?

  • Increased weight and mass
  • Unique optical, magnetic, and electrical properties (correct)
  • Enhanced strength and durability
  • Greater thermal conductivity and heat resistance

    • Which of the following is an example of a natural nanomaterial?

  • Plastic
  • Smoke (correct)
  • Metal
  • Glass

    • What is an example of an incidental nanomaterial?

    <p>Diesel exhaust</p> Signup and view all the answers

    What types of nanomaterials are intentionally created?

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

    Which property of nanomaterials includes aspects like size, shape, and aspect ratio?

    <p>Specific surface area</p> Signup and view all the answers

    What is the significance of nanoscale in nanomaterials?

    <p>It results in distinct properties different from those at the larger scale</p> Signup and view all the answers

    What types of nanomaterials have one dimension arrangement of atoms in the nanoscale range?

    <p>Surface coatings</p> Signup and view all the answers

    What is the top-down approach in the synthesis of nanomaterials?

    <p>Reducing bulk material into nanosized structures or particles</p> Signup and view all the answers

    Which property of nanomaterials is impacted by the quantum confinement effect?

    <p>Phase identity</p> Signup and view all the answers

    What are some of the applications of nanomaterials?

    <p>Material technology</p> Signup and view all the answers

    What is a common issue with the top-down approach in synthesizing nanomaterials?

    <p>Lack of control over surface structure</p> Signup and view all the answers

    What is a significant reason behind the distinct properties of materials at the nano level?

    <p>Quantum and mechanical effects influencing material properties</p> Signup and view all the answers

    Which approach involves breaking down bulk material into nanosized structures or particles?

    <p>Top-down approach</p> Signup and view all the answers

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