ch. 32 questions
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| what kind of charges repel? | like charges repel
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| what kind of charges attract ? | opposite charges attract
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| if a rod is rubbed with wool the wool is has a positive charge because ? | electrons are transfered from the wool to the rod . protons can't be transfered.
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| a neutral rubber rood becomes negatively charged | the wool looses electrons
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| what charge do electrons protons and neutrons have? | electrons have negative charge, protons have a postive charge, nuetrons are neutral
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| what is a charged atom called ? | an ion
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| if an atoms gains electrons what kind of ion is it? | a negative ion
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| what kind of net charge does a neutral atom have ? | a zero net charge
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| what is the principle of Conservation of charge? | that electrons are not created or destroyed they are transfered
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| what are the three different ways to charge an object ? | friction , induction and contact
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| what provides a path for electrons to move from or to the ground ? | grounding
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| what is an example of charging by induction in nature ? | lightning
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| what is polarization ? | polarization is when insulators can be charged by induction even though they don't have electrons that are free to move throughout the material ,
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