初中物理公式大全(含变形)及关键知识点归纳暨中考必备资料。

《初中物理公式大全(含变形)及关键知识点归纳暨中考必备资料。》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、初中物理公式大全（含变形）及关键知识点归纳初中物理公式大全（含变形）及关键知识点归纳中考必备资料第一、物体的运动v=s=vtt=第二、物质的属性ρ=m=ρVV=Q=cmΔtc=m=Δt=Δt=t-t0（Δt=t0-t）G=mgm=第三、压强浮力p=（固体及通用公式）F=pSS=p=ρgh（液体气体内部压强）ρ=h=F浮=ρ液V排gV排=ρ液=F浮=G（悬浮、漂浮）F浮>G（上浮）F浮

2、ndDirectorofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,hehasbeentheNorthwestOfficeoftheFederationofStateenterprisesMinister,ShenmufuguSARmissions,DirectorofNingxiaCountypar

3、tyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand9初中物理公式大全（含变形）及关键知识点归纳(即浸入液体中的体积) 第四、杠杆平衡F1l1=F2l2==第五、滑轮F拉=G物（或F拉=（G物+G轮））（动滑轮）第六、功、功率、机械效率W=FsF=s=P=W=Ptt=P===F=FvF=v=η=×100%η===（滑轮组的机械效率）第七、电路串联—电压：U总=U1+U2并联—电压：U总=U1=U2=电流：I干=I支1+I支2otherstaffoftheCentre.Duringthe

4、war,ZhuwastransferredbacktoJiangxi,andDirectorofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,hehasbeentheNorthwestOfficeoftheFederationofStateenterprisesMinister,ShenmufuguSA

5、Rmissions,DirectorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand9初中物理公式大全（含变形）及关键知识点归纳电流：I=I1=I2=电阻：R总=R1+R2电阻：欧姆定律：R=U=IRI=电功：W=UItU=I=t=W=（根据电能表参数算电功）电功率：P=UIU=I=W=PtP==I2RR=电热：Q=I2Rt电功与电热的关系：一般情况：W>Q电热器、纯电阻：W=Q=UIt=I2Rt=t=Pt第八、波（电磁波）f=T=v=f=λ=o

6、therstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirectorofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,hehasbeentheNorthwestOfficeoftheFederationofStateen

7、terprisesMinister,ShenmufuguSARmissions,DirectorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand9初中物理公式大全（含变形）及关键知识点归纳名称     符号 名称         符号 质量  m    千克          kg 温度