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### 11 Cards in this Set

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 Atoms Made of -Protons -Electrons -Neutrons Protons have positive charge, electrons have negative charge. Neutrons are neutral. Electrons move from atom to atom. More electrons=Negative charge More protons=Positive charge Force Attraction between oppositely charged particles. Same charge=repel each other Electric Fields Area over which an electric charge exerts a force. Strongest near charged particle. --See Figure 1-3 Law of conservation of charge Charge is never created or destroyed. Charge is transfered from one object to another. Friction Method -Rubbing two objects together causes charge. -Balloon & hair Conduction Method -Direct contact -electrons flow from one object to the other -conductors let charges move freely -insulators don't Induction Method -rearrangement of electric charges -neutral comes close to charged -no contact Static electricity transfer of electrons from one object to another w/o further movement -buildup of electric charges on an object Elctric discharge the loss of static electricity as electric charges move off an object -example: lightning lightning rods/grounding put on top of buildings as lightning protection -earth is good conductor; easily accepts or gives up electric charges -lightning rods attached to ground through wire -lightning goes into earth when in contact w/ rod electroscope -detects electric charges -neutral: leaves together +/- repel eachother