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Physics

8thgrade

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Energy Transformations

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36 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
    What is the best example of a machine that converts electrical energy into kinetic energy and sound energy?
    An electric toothbrush
    A toaster
    A flashlight
    An iron
  • 2. Multiple Choice
    30 seconds
    1 pt
    What best describes the energy conversion that occurs when you turn on a hair dryer?
    chemical to thermal to light and sound
    electrical to kinetic to thermal and sound
    nuclear to electrical to thermal and sound
    kinetic to light to thermal and sound
  • 3. Multiple Choice
    30 seconds
    1 pt
    Which of the following converts chemical energy to kinetic energy to electrical energy?
    a wood stove
    a blender
    an electric motor
    a generator
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