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q showQuestions-17.php - PS100 Questions from Chapter 4...

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PS100 Questions from Chapter 4 Comprehension true/false Friction comes from electromagnetic forces. true false Electric force becomes stronger if the charged objects are moved farther apart. true false Neutrons have a negative charge. true false Iron and nickel are examples of ferromagnetic metals. true false Electric currents exert forces on permanent magnets. true false matching The basic positive charge-carrying particle in an atom. Metal alloys that are attracted to magnets or are capable of being transformed into a permanent magnet. A meterial that does not permit electrons to flow through it.
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The matematical formula F=kqQ/d 2 which describes the strength of the force between two objects of charge Q and q with their centers separated by the distance d. A current of electrons that changes direction of flow. The unit of measure for charge. Material that allows electrons to flow through it.
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  • Spring '10
  • Electrons, Electric charge, Henry Cavendish Benjamin Franklin Thomas Edison William Gilbert, rubber. electrons

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