Bn Ch 1 Quiz 2

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  • 1/5 Questions

    Why are electric wires often covered in plastic?

    • To make the wires colorful
    • So the wires are easy to see
    • To keep the wires cool
    • To insulate the wires
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Electricity Quizzes & Trivia
About This Quiz

BN Ch 1 Quiz 2 explores key concepts in electricity, focusing on conductors and insulators. It assesses understanding of material properties affecting electrical conductivity, safety measures like insulation of wires, and practical examples of conductive materials.


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  • 2. 

    Which of these is a good conductor?

    • A plastic doll

    • A wooden spoon

    • A silver spoon

    • A glass vase

    Correct Answer
    A. A silver spoon
    Explanation
    A silver spoon is a good conductor of electricity because silver is a metal and metals are generally good conductors of electricity.

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  • 3. 

    What is the name given to materials that do not let electricity move through them?

    • Conductors

    • Insulators

    • Metals

    • Plastics

    Correct Answer
    A. Insulators
    Explanation
    Insulators are materials that do not allow electricity to flow through them easily. They have high resistance to the flow of electric current, preventing the movement of electrons. This is due to their tightly bound electrons, which do not have enough energy to move freely. Examples of insulators include rubber, plastic, glass, and wood.

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  • 4. 

    Which of these pairs DO conduct electricity?

    • Plastic and carbon

    • Metal and rubber

    • Metal and carbon

    • Carbon and rubber

    Correct Answer
    A. Metal and carbon
    Explanation
    Metal and carbon conduct electricity because they are both materials that have free electrons that can move freely within the material. In metals, the outer electrons of the atoms are not tightly bound to the nucleus, allowing them to move easily and carry electric charge. Carbon, in the form of graphite, also has free electrons due to its unique structure, which allows it to conduct electricity. Plastic and rubber, on the other hand, are insulators and do not have free electrons to carry electric charge.

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  • 5. 

    Place a checkmark on ALL of these that will conduct electricity.

    • Rubber

    • Key

    • Cd

    • Wooden table

    • Fork

    Correct Answer(s)
    A. Key
    A. Fork
    Explanation
    Rubber, cd, wooden table, and key cannot conduct electricity. However, a key and a fork are both made of metal, which is a good conductor of electricity. Therefore, the key and fork are the only items in the list that will conduct electricity.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 25, 2012
    Quiz Created by
    Bmsscience
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