【AP物理C】【真题】解答题答案C1989

AP®PhysicsC1989ScoringGuidelinesThesematerialswereproducedbyEducationalTestingService®(ETS®),whichdevelopsandadministerstheexaminationsoftheAdvancedPlacementProgramfortheCollegeBoard.TheCollegeBoardandEducationalTestingService(ETS)arededicatedtotheprincipleofequalopportunity,andtheirprograms,services,andemploymentpoliciesareguidedbythatprinciple.TheCollegeBoardisanationalnonprofitmembershipassociationdedicatedtopreparing,inspiring,andconnectingstudentstocollegeandopportunity.Foundedin1900,theassociationiscomposedofmorethan4,200schools,colleges,universities,andothereducationalorganizations.Eachyear,theCollegeBoardservesoverthreemillionstudentsandtheirparents,22,000highschools,and3,500colleges,throughmajorprogramsandservicesincollegeadmission,guidance,assessment,financialaid,enrollment,andteachingandlearning.Amongitsbest-knownprogramsaretheSAT®,thePSAT/NMSQT®,andtheAdvancedPlacementProgram®(AP®).TheCollegeBoardiscommittedtotheprinciplesofequityandexcellence,andthatcommitmentisembodiedinallofitsprograms,services,activities,andconcerns.Copyright©2002byCollegeEntranceExaminationBoard.Allrightsreserved.CollegeBoard,AdvancedPlacementProgram,AP,SAT,andtheacornlogoareregisteredtrademarksoftheCollegeEntranceExaminationBoard.APIELisatrademarkownedbytheCollegeEntranceExaminationBoard.PSAT/NMSQTisaregisteredtrademarkjointlyownedbytheCollegeEntranceExaminationBoardandtheNationalMeritScholarshipCorporation.EducationalTestingServiceandETSareregisteredtrademarksofEducationalTestingService.ThematerialsincludedinthesefilesareintendedforusebyAPteachersforcourseandexampreparationintheclassroom;permissionforanyotherusemustbesoughtfromtheAdvancedPlacementProgram®.Teachersmayreproducethem,inwholeorinpart,inlimitedquantities,forface-to-faceteachingpurposesbutmaynotmassdistributethematerials,electronicallyorotherwise.Thesematerialsandanycopiesmadeofthemmaynotberesold,andthecopyrightnoticesmustberetainedastheyappearhere.Thispermissiondoesnotapplytoanythird-partycopyrightscontainedherein.