tenafly public schools index物理特纳夫莱公立学校指数课件

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1、IntrotoPhysicsMrs.CoylePhysicsisthestudyofthephysicalworldincludingmotion,energy,light,electricity,magnetism,soundetc.PhysicsMechanicsKinematics(motion)Statics,Dynamics(forces)ElectricityMagnetismWavesOptics(geometricoptics)NuclearPhysics(ModernPhysics)GoldenGateBridgePhysicsThemo

2、stbasicscience.ThefoundationofothersciencesWhat?Why?How?When?Aristotle(Greek4thCenturyBC)LogicStudiedmotionNaturalandviolentmotion4elements:earth,water,air,fireGeocentricviewAristarchos(310-230BC),disagreedandbelievedinheliocentricview.DemocritusGreekwhodevisedthefirstatomictheory

3、.GalileoGalilei(1564AD)Fatherofthescientificmethod(alongwiththeEnglishmanFrancisBacon1500’s).Studiedmotion.AgreedwiththeGreekAristarchosandPolishCopernicus(1473-1543)onheliocentricviewpoint.Thisleadtohishousearrest.IsaacNewtonEnglish(1642-1727)relatedforceandmotionandstudiedlight.

4、AGlanceatSomeScientistswhoStudiedElectricityandMagnetismAmericanBenjaminFranklin(1706-1790),experimentedwithelectricity.MichaelFaraday(1791-1867),Englishwithagrammarschooleducation,foundthatamovingmagnetinduceselectriccurrenttoflow.TheBIGGuyAlbertEinstein(1879-1955)Relativity:ther

5、eisnoabsoluteframeofreferencethatisatrest.Photoelectriceffect(Lightisquantized)(NobelPrize)RelatedmassandenergyE=mc2TheScientificMethodStepsfollowedduringscientificinvestigations.ScientificMethodRecognizeaproblemHypothesis-educatedguess,testableWhentestedandconfirmedbecomesalawObs

6、ervation-measurement,datacollection(experiment)Theory–informationincludingtestedhypothesisConclusionLaworPrincipleAhypothesisthathasbeenrepeatedlytestedandnotcontradicted.Lawschangeorareabandonedwhencontradicted.ScientificFactObservationMaychangeScienceandTechnologySciencePureTec

7、hnologyAppliedMathandUnitsMath-thelanguageofPhysicsUnitsSI–InternationalSystemBasicUnitsMKSMetermMasskgTimesNationalBureauofStandardsPrefixes