物理选修3-5知识点归纳

清水混凝土的配合比设计中，要针对当地水泥、砂石、外掺料及外加剂等原材料影响混凝土质量的多种因素进行分析，确定主要控制因素，并从经济性和使用要求综合考虑，优选出符合生产条件的最优方案组合。obstacles,correctingmisunderstandings,advocategoodcadrestyle.2,adheretothescientificdecision-makinganddemocraticdecision-makingdecision-makinglaw.Correctlyhandletoensurethatgovernmentdecreesandbasedontheactualcreativework,givingfullplaytosubjectiveinitiative,putanendtoimplementtheconferencemeeting,todocumenttheimplementationofdocumentsetc.Improvethescientificanddemocraticdecision-makingmechanism,improveandimplementthedecisiontosolicittheviewsofexperts,thepublichearingsystem.Improvetheimportantdecisionofriskassessmentmechanismandlegalreviewmechanism.3,topromoteteamunity.Upholdandimprovethesystemofannualpartybooktalkhearttoheart,mindandPartymembers,Partymemberstoexchangeeachothernotlessthan2times.Theimplementationofsoundteamdemocraticlifesystem,consolidateandenhancetheparty'smasslineeducationalpracticewillpromotetheachievementofthetopicofdemocraticlife,criticismandself-criticismnormalization,along-term.Adheretothepartyonthebasisoftheprincipleofunity,enhanceinternalcommunication,strengtheninternalsupervision,selfSleepmaintenanceteamcollectiveimageandauthority.(three)toensuretheexecutionisnotstrongordisguisedtoresistgovernmentdecreesissues.IndividualBureauleadershipteammemberslackoflearningpoliticaltheorysystem,notfromtheobjectivereality,notwiththeparty'sinterestsabovealltheprinciplestodealwithpersonalproblems.Inthespecificworksafetysupervisionintheexecutionisnotstrong,intheimplementationofthedecisiontodeploythediscount,makechoices,engageinwork,theimplementationoftheagreement,uncomfortableisnotperformed,openordisguisedtoresist,thelackofsubjectconsciousnessofthepartyorganization,thelackofresistinsocietyallkindsofbadhabitsandunwholesometendenciesofcourageGasandcourage.Suchastheliabilityinsuranceofsafeproductionwork,individualleadersthathavesomeonearrested,andnofunding,notintheglobalchessperspectivetothecountrysidetocarryoutdailyinspection,foundnoneofmybusinessacceptanceoftheresumptionofproductioninanarmchair,withapen,indifferent.Correctivemeasures:(LEDLeadership:LuoMingjun,rectificationtime:beforeSeptember25th,insistforalongtime)1,tostrengthenthesenseofresponsibility,worktosolvethelackofdecentoccupationexplainaway,conductproblems.Toestablishtheoverallconcept,eliminatedepartmentalism.Strictassessmentandaccountability,tosolvethespiritualslack,nianqingpazhong,statusquo,Toestablishandperfectthemuddlealongandotherissues.Bureaustaffconductworkregulations,standardizethebehaviorofpersonnel.2,strengthentheresponsibilitysystem.Oneisthein-depthstudyandimplementtheHunanprovincialPartyandgovernmentleadingcadresInterimProvisionsontheworksafetyofapairof(HunanOfficeissued2013No.物理选修3-5知识点总结一、动量守恒定律1、动量守恒定律的条件：系统所受的总冲量为零（不受力、所受外力的矢量和为零或外力的作用远小于系统内物体间的相互作用力），即系统所受外力的矢量和为零。（碰撞、爆炸、反冲）注意：内力的冲量对系统动量是否守恒没有影响，但可改变系统内物体的动量。内力的冲量是系统内物体间动量传递的原因，而外力的冲量是改变系统总动量的原因。2、动量守恒定律的表达式m1v1+m2v2=m1v1/+m2v2/（规定正方向）△p1=—△p2/3、某一方向动量守恒的条件：系统所受外力矢量和不为零，但在某一方向上的力为零，则系统在这个方向上的动量守恒。必须注意区别总动量守恒与某一方向动量守恒。4、碰撞（1）完全非弹性碰撞：获得共同速度，动能损失最多动量守恒，；（2）弹性碰撞：动量守恒，碰撞前后动能相等；动量守恒，；动能守恒，；特例1：A、B两物体发生弹性碰撞，设碰前A初速度为v0，B静止，则碰后速度0vmmmmvBABAA，vB=02vmmmBAA．特例2：对于一维弹性碰撞，若两个物体质量相等，则碰撞后两个物体互换速度（即碰后A的速度等于碰前B的速度，碰后B的速度等于碰前A的速度）（3）一般碰撞：有完整的压缩阶段，只有部分恢复阶段，动量守恒，动能减小。5、人船模型——两个原来静止的物体（人和船）发生相互作用时，不受其它外力，对这两个物体组成的系统来说，动量守恒，且任一时刻的总动量均为零，由动量守恒定律，有mv=MV（注意：几何关系）二、量子理论的建立黑体和黑体辐射1、量子理论的建立：1900年德国物理学家普朗克提出振动着的带电微粒的能量只能是某个最小能量值ε的整数倍，这个不可再分的能量值ε叫做能量子ε=hνh为普朗克常数（6.63×10-34J.S）2、黑体：如果某种物体能够完全吸收入射的各种波长电磁波而不发生反射，这种物体就是清水混凝土的配合比设计中，要针对当地水泥、砂石、外掺料及外加剂等原材料影响混凝土质量的多种因素进行分析，确定主要控制因素，并从经济性和使用要求综合考虑，优选出符合生产条件的最优方案组合。obstacles,correctingmisunderstandings,advocategoodcadrestyle.2,adheretothescientificdecision-makinganddemocraticdecision-makingdecision-makinglaw.Correctlyhandletoensurethatgovernmentdecreesandbasedontheactualcreativework,givingfullplaytosubjectiveinitiative,putanendtoimplementtheconferencemeeting,todocumenttheimplementationofdocumentsetc.Improvethescientificanddemocraticdecision-makingmechanism,improveandimplementthedecisiontosolicittheviewsofexperts,thepublichearingsystem.Improvetheimportantdecisionofriskassessmentmechanismandlegalreviewmechanism.3,topromoteteamunity.Upholdandimprovethesystemofannualpartybooktalkhearttoheart,mindandPartymembers,Partymemberstoexchangeeachothernotlessthan2times.Theimplementationofsoundteamdemocraticlifesystem,consolidateandenhancetheparty'smasslineeducationalpracticewillpromotetheachievementofthetopicofdemocraticlife,criticismandself-criticismnormalization,along-term.Adheretothepartyonthebasisoftheprincipleofunity,enhanceinternalcommunication,strengtheninternalsupervision,selfSleepmaintenanceteamcollectiveimageandauthority.(three)toensuretheexecutionisnotstrongordisguisedtoresistgovernmentdecreesissues.IndividualBureauleadershipteammemberslackoflearningpoliticaltheorysystem,notfromtheobjectivereality,notwiththeparty'sinterestsabovealltheprinciplestodealwithpersonalproblems.Inthespecificworksafetysupervisionintheexecutionisnotstrong,intheimplementationofthedecisiontodeploy