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Review unit 7,8 and 9

  •  English    15     Public
    Science
  •   Study   Slideshow
  • What energy transformation occurs in a television?
    electrical → light → sound → heat
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  • What type of electricity is caused by a buildup or an excess of positive or negative charges in an object?
    static electricity
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  • T or F: Opposite charges attract! (-) + (+) =
    True
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  • T or F: Lightning is an example of static electricity
    True
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  • Open circuit or closed circuit
    Open circuit
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  • In an open circuit the switch is
    off
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  • Which object has a neutral charge?
    A
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  • Which two particles compose the nucleus of an atom?
    neutrons and protons
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  • If you take one light bulb out of a parallel circuit, all the lights will go out. True or False
    False
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  • What causes an object's motion to change speed?
    Force
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  • What is the difference between mass and weight?
    Mass is how much matter is in an object, and weight is the gravitational pull on that object.
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  • What type of force does one surface exert on another when the two rub against each other?
    friction
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  • What does the amount of matter in an object refer to?
    mass
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  • Which object has a neutral charge?
    B
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  • What is phantom energy?
    Energy is consumed by appliances even when they are turned off.
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