中考物理压轴题汇总

117225ml7150ml7g10N/kg(1)(2)11ABCD530R1R2220VR2R1U9V30mA(1)(2)R2250R1()(3)550R224380V1540kg16m20A80%g=10Nkg1F2F342032014?6VR05RxSA__________________130km/h1AABCRx_________2622013?vFt48V5A712s35N87.5%8AMBMABCODM201510ABCXD20152320220V2000WRtR1FI3NS1100kg20min20252R1=280252525U3U253016(2011)______________125.,R1,R0R2R1R0236.1012A.B.AC.D.3Q?80Hzkg/h.4W10min,kg6[c=1.0103J/(kg)]50.5h10h2.9kWh.0.5hkWh,10hA.1112B2311231201261426601266150.711112AABABCDCD31Q20HzQ34kg/h80Hz70Hz10Hz106kg/h17kg/h123kg/h4700W3.80=700W3.80=2660WQ=cmt2660W1060s=1.0103J/(kg)m6m=266kg51400W0.5hW=Pt=1.4kW0.5h=0.7kWh10h2.9kWh0.7kWh=2.2kWhW=UIt2.23.6106J=220VI103600sI=1A12(2015?)UIR1932015?ABA5AB3V0.9AAB212332015?FS220V3min30200W3000imp/kW?h1300031(7)(2015?)20151()12VSR0Rx()(0.2A0.2A)220VS50050012VSR0Rx()(0.2A0.2A)220VS500500(1)(1)(2)R0_______(3)3.6V_______(2)R0_______(3)9.6V_______12(2015?)66V3WR0(1)12233445(2)23UX25130R07ABCD88SPABCD1039RxSRR0RxSaISbRI/2RRx,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,A0R3R2BRC0RR2D00RRRR105.23DA2B.lC3D.51246ababN6N7A260ABCD2896ABCDABCD12FSS1ABCD195A.B.C.D.214A.B.C.D.22FA.B.C.D.24ABCD26LDAlBlClDll27EEF()316ABCD2110cm12321A_430cmcm545cm361210339__________________cm_____________________________________.25cm________________________________4061240121235abbBABCD17211///2/321/7.(2007)PR0=5ab5cmR=20U=3V0~0.6APR1PR2LFS0.2A4770kg5kg120N0.2m/s122921=2.5103kg/m3g=10N/kg1120N212341F=T=3F-G=3120N-50N=3102731FGGFF=g=G/32GGFN1N2G=N1+F1G=N2+F2F1F1F2F2N1N2=2921G1000F4001=FGGFG2=GGG21FGGFGGGG=N400N50N1000N400N1000N1000N50N1000=65633P=F2nv=G+Gv=1000N+500.2m/s=210W1.1,60kg,,130kg,F1,N1,1;,90kg,F2P2,0.1m/s,N2,N1N22:3(,g10N/kg):(1)F1;(2)1;(3)P2111211111FGN11FF411GGF122FGN22FF422GGF132NN215300GN1F1=400N1F2=300N281.25%4J4001300J4hFhGW111W130.1m/ssmsmv/4.0/1.0421WsmNvFP120/4.03002222600N30.01m3AN1GF1N2GF28.75103Pa4002cmB80%ABGAGB=512g=10N/kg1A2A3A4A0.2m/sP32(1)F=F=PS=8.75103Pa40010-4m2=350N(2)F=GF=600N-350N=250NF=gVA=1103kg/m310N/kg0.01m3=100NGA+G=2F+F=2250N+100N=600NGA+G=600NB:B=hGGhGBB)(=80%GAGB=512GA=375NG=225NA=3A01.0/10375GmkgNNgVA=3.75103kg/m3(3)AA=hFhFGA2)(=NNN2502100375=55%4P=Fv=2GGA2v=2225375NN20.2m/s=120W35120kg400W320kgF1N1240kgF2N2N1N257g=10N/kg1F123351122112212121111(51(15571(511(580011((32010/85NGFNGFFGGFGGNNmgmgGmgmgGGNFmgGkgNkg571=51112112211200)800132010/80%132010/8001(24010/800451132010/8005(5NNGkgNkgGGkgNkgNPGGvFFkgNkgNPvFkgNkgNGGF422G8104NABCDEAV0.5m3Gp12107Pap2p32.5107PaEEN1N280%11875Wg10N/kg1p22N1N234712F1N1G1F2N2G2ABDCEF2243271732443333447232810N410m210Pa2.510Pa410m810N210N10kg/m10N/kg0.5m5000N810N210N5000N2.37510Pa410mGSpGpSGFgVGGFpS,,1,,1,,1G=3750NF1F2L1L2N1L1=3F1L2N2L1=3F2L221NN=21FFF1=31GF+GF2=31G+G21NN=GGGFG=20000N5000N3750N20000N3750N=19153F2=(G+G)/3vvv=3vP=F2vv=211875W1(20000N3750N)3PF=1.5m/s525120kg400W320kgF1N1240kgF2N2N1N257g=10N/kg1F1235111.5m/s0.5m/s33vv440044210N0.510N80210N0.510NWGFhGFWGFGGFGhG,,1,,1,,1,,1251122112212121111(51(15571(511(580011((32010/85NGFNGFFGGFGGNNmgmgGmgmgGGNFmgGkgNkg571=51112112211200)800132010/80%132010/8001(24010/800451132010/8005(5NNGkgNkgGGkgNkgNPGGvFFkgNkgNPvFkgNkgNGGF6.18ABOCACACABABBB110-4m3Cm1.04cm2BOB=6AOg10N/kg1C215F1N1G1F2N2G218FALAFLBFALAgVB6LA(1)FA1.0103kg/m310N/kg10-4m366N(1)CFCFAFC=6N2C6CF1CF2CF2FAF11F1p1Scgh1Sc1.0103kg/m310N/kg0.1m410-4m20.4N,,,1F2p2Scgh2Sc1.0103kg/m310N/kgh410-4m2FAFA1.0103kg/m310N/kgh410-4m26N+0.4N1h1.6m172370kg5kg120N0.2m/s122921=2.5103kg/m3g=10N/kg1120N21231F=T=3F-G=3120N-50N=310231FGGFF=g=G/32GGFN1N2OFFACF2F1FA5623G=N1+F1G=N2+F2F1F1F2F2N1N2=2921G1000F4001=FGGFG2=GGG21FGGFGGGG=N400N50N1000N400N1000N1000N50N1000=65633P=F2nv=G+Gv=1000N+500.2m/s=210W10ABOAOOB=23ODDB=11100NBF0.2mM7500paDFM15000pa1M2FFBAF1Mf1GN11112DABOM38FBAF1FOF1F1Gf1GMf1N1F12k=F3k1F1=1.5Ff1=3F-100N1N1=P1S=7500pa0.04m2=300N1N1=G-3F-100N200N=G-3F1FDAF2Mf2GN2F22k=F1.5kF2=0.75Ff2+100N=1.5FN2=P2S=15000pa0.04m2=600N600N+f2=G500N=G-1.5F1F=200N1G=800N112510Np1,.20Ap2,2750pa200cm280%A12A3AB,30N,7BAF2FOF2F2Gf2GMf2N2DA201FFPS27505Pa4102m2110N,,,,,,,,22F2ffF280%2110N176N,,,,,,,,,,,,13Ff21GGF2f2110N176N44N,,,,,,,,,,1f176N+30N206N,,,,,,,,,,1'ffGNNN2064420682.4%,,,,,,,,,,21418A100kg70kgA15260%g10N/kg1AF2A23A0.2m/s2P71111NFG11FGN39A1822NFG22FGN215212121FGFGNNNN---------1%602111FFGSFhFGWW---------21FGGF--------------22GGF-------------------1NkgNkggmG700/1070NkgNkggmG1000/10100NG3201%6032010001000FNNFNFGGFGNF520NFNF6604002112%7632010001000222NNNGGGFGWW13WsmNvFvFP264/2.013202222211523G10NGG81.5102m2ABOOAOB21P2103PaFGGOAFBOBFBOBOAG1210N20N,,,,1233FBFG,,,,,,,,,,,,1G3FBFGFF,,,,,,,,,,,,1GGFFFFB38124FB8FFFF91(24FBF)91(24FBpS)91(2420N2103Pa1.5102m2)50N,,,,,,,,1G3FBF320N50N10NG8G810N80NFFG80N,,,,,,,,,,,,,,,,13FBFGFB31(FG)31(80N10N)30NFAOAFBOBAFAGGGOAOBFBG2130N10N5N,,,,,,,,,,,131X99FhX99(1)________N(2)________N(3)________m3(4)________kg/m3;(5)BC_______()(6)CD_________________________________________________10824v=0.2m/sFtt=0g10Nkg1231G=4000N,F=3500N35000.2/700PFvNmsW240003500N500NFGFN2333500N510m10kg/m10N/kgFVVg33-23400kg810kg/m510mmV12()0.2m/s(50s10s)12mhvtt3310kg/m10N/kg12m120000Papgh14131ACP1BCP2CCChAP3OP3OP1OP224