Franklin课件
日期：2010-05-26 05:21
inventor，ScientistsatworkMadameCurieRadiumandUraniumTheoryofEvolutionThomasEdisonElbertEinsteinTheTheoryofRelativityTheelectriclampIsaacNewtonTheTheoryofGravityNobelDetonatorand“NobelPrize”BenjaminFranklinFamousAmericanscientist，politicianintheeighteenthcenturydiscoveredelectricityFranklin’sFamousKiteExperimentWhat’sthepassageabout?Howmanypartscanwedividethepassageinto?FindoutthemainideaofeachpartWhat’sthepurposeofhisexperiment?2Whatdidthisexperimentprove?Readthefollowingstatementsanddecideiftheyaretrueorfalse1In1752scientistsalreadyknewwhatelectricityis()2Franklinwashelpedbyafriendtodotheexperiment()3Franklinmadethekiteofsilkbecausewetsilkdoesnotconductelectricity()4Acondenserwasusedintheexperimenttostoreelectricity()5Thekeytiedtothestringwasputintothedoortostopthekitefromflyingaway()TFFTFWhichoneiscorrect?Pictures2and4arecorrectDiscussion:1WhydidBenjaminFranklindothisexperiment，
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