Science

8th

grade

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Light Review

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19 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    An electromagnetic wave is a wave that

    can travel through matter.

    can travel only through empty space.

    consists of changing electric and magnetic fields.

    is the same as sound waves and water waves.

  • 2. Multiple Choice
    30 seconds
    1 pt

    The major source of energy on Earth originates from

    food.

    fossil fuels.

    photosynthesis.

    EM waves from the sun.

  • 3. Multiple Choice
    30 seconds
    1 pt

    Electromagnetic waves are arranged by

    speed.

    amplitude.

    wavelength.

    usefulness.

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