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ID:12968634
大小:6.68 MB
页数:106页
时间:2018-07-19
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1、First60-DayPublicReviewDraftNovember2015First60-DayPublicReviewDraftNovember2015HighSchoolThreeCourseModel–PhysicsintheUniverse:IntegratingPhysicsandEarth&SpaceScienceIntroductionPhysicalprocessesgoverneverythingintheUniverse.Geoscientistsrequireastrongbackgroundinthelawsofphysicsinorde
2、rtointerpretprocessesthatshapetheEarthsystem.Forcesofmovingwaterpushtinyparticlesofsandalongbedsofrivers,sometimeshardenoughthattheycollidewiththerockswithsuchforcethatapieceoftheriverbedbreaksoff.Overtime,theGrandCanyonforms.GravitypullsconstantlyonrocksatthesurfaceoftheEarth,andsometi
3、mesthefrictionalforcesresistingmovementfalter.Alandslidecrashesdownacanyon,destroyingeverythinginitspath.Thenucleiofatomsthousandsofmilesbelowthesurfacethathaveremainedstableformillionsofyearsspontaneouslyexplodeapart,releasingmassiveamountsofenergyandheatingupthesurroundingrock.Ageyser
4、ofhotsteameruptsinCalifornia,releasingsomeofthisexcessheattothesurface.Ineachcase,anEarthorspacescientistisstudyingthephysicsofthesituation,perhapsusingacomputermodeltofastforwardmillionsofyearsofenergytransfertoexplainwhatweseeonEarthtoday.Alongsidethisscientistisateamofengineers,looki
5、nghopingtousethisunderstandingtodesignandtestsolutionstomanyofsociety’sproblemsfromnaturalhazardstoglobalwarmingortominimizeourimpactonthenaturalworld.PhysicsteachersmaynothaveastrongEarthsciencebackground.Whileitistruethattheremaybedetailsandhistoricalbackgroundthatarenew,thephysicalpr
6、ocessesarenot.Thelawsofphysicsareuniversal.Infact,Earthandspacescienceapplicationsareexcellentmotivationstothestudyofphysicallaws.Aclassicexampleiswaves,atopicwithsuchuniversalimportancethatCANGSSdevotesanentiresetofDCIsinphysicalsciencetothem.Withsuchsignificance,itseemsunfortunatethat
7、themostcommonclassroomapplicationofthemisastringheldbetweentwopeople.WhileDRAFTCAScienceFramework-Chapter7:HSThreeCourseModel–PhysicsinUniversePage106of106First60-DayPublicReviewDraftNovember2015itisindeedelegantthatsuchasimpledemocancapturesucharichprocess,itishardtoclaimthatt
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