Science, Arts

4th

grade

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science

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15 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
    Image

    Why electrical wiring usually are covered with a layer of plastic?

    To make it look pretty

    To help electricity flow along the wire

    To make it safe

    To add more energy

  • 2. Multiple Choice
    30 seconds
    1 pt
    Image

    What needs to be done to this circuit so that the lamp lights up?

    Close the switch

    Add a source and close the switch

    Add another lamp

    Add another lamp and a switch

  • 3. Multiple Choice
    30 seconds
    1 pt
    Image

    Why is electrical wiring usually made from copper?

    Because copper is shiny

    Because copper conducts electricity

    Because copper is not magnetic

    Because copper insulate electricity

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