ThisnintheditionofBarronsSATSubjectTestPhysicsreflectschangesthathavetakenplaceinboththeexaminationandthecurriculumsincethereleaseoftheeighthedition.　　Thebookbeginswithanintroduction，whichsetsthestageforyourreview.Init.youwilllearnaboutthestructureoftheSATsubjecttestinphysics，methodsforsolvingphysicsproblems.andsomegeneralInformationaboutthescoringofthetest.ThisintroductioniSfollowedbyadiagnostictest(withfullanswersandexplanations)thatyoucanuseasareliminaryassessment.Aftertakingthisdiagnostictest，refertotheappropriatereviewchaptersforadditionalinformation.Theremainderofthebookcontainsanextensivereviewofthematerialcoveredinatypicalhighschoolphysicsclass.Chal-lengingquestionsareidentifiedwiththeicon.Youmayneedtouseacalculatorfotsomeofthesequestions.However，youmayNOTuseacalcu-latorforthepracticetestsortheactualSATsubjecttest.　　Additionalpracticetests，withanswersandexplanations，areprovided.Thesepracticetestsarecomparabletotheactualtest.Theappendicesatthebackofthebookassistyourreviewbydiscussingbackgroundmathskillsaswellasprovidingusefulcharts，formulas，andtables.Thereisalsoaglossaryofphysics-relatedterms.　　ItiSbothanhonorandapleasuretoassistinthepreparationofthislatestedition.andIwouldliketothankseveralpeople.LindaTurner，SeniorEditoratBarrons.hasalwaysbeenhelpfultomewithherguidanceforallofmyprojects.MycolleaguesBobDraper，PatJablonowski，andJoeVaughanhavebeengenerouswiththeirconstantencouragementandprofessionaladviceinregardtobothcontentandpedagogy.Finally，Ithankmywife，Karen，aswellasmydaughters.MarissaandIlana，fortheirunderstanding，love，andsupport.　　　　本书为英文版。