第十六章第2节串并联电路中电压的规律ppt课件.ppt

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1、一句英文心情签名1、Youcanonlylivebrilliantlyifyouknowhowtoloveyourself.2、Willtherebethatoneday，youleftme.3、WhenI'mgoodI'mvery，verygood，butwhenI'mbad，I'mbetter.4、Wewerejustkidsinlove.5、Wearenotwrong，isyoungruinedpromises.6、watermelon’sloverissummer.7、Toforgiveiseasy，buttotrustagainisnotthateasy.8、Themorey

2、oucareforsomeone，thelessyouunderstandhim.9、Thebesthappinessisallcareyougive.10、Somedayyou'llfind，life'snameiscalledinvain.11、So-calledplayboyisthatyoucan'tfillupmyheartfor24hours.12、Myloveforyouwillnotgivetoothers13、Memoryisakindofinnerrumor.14、Memoriessoheavy.Howdoyoumoveback.15、Lovetobelovedby

3、you.16、ItwouldbegreatifIknowhowtogiveyouup.17、Intheend，you'llseewho'sfake，who'strueandwhowouldriskitalljustforyou.18、I'mjustfolk.Ihavemoodswings.19、I'llbethereforyou。20、Ifmyfuturehasyouinit，I'mnotafraidofanything.21、IwilllearntogiveyoubecauseIloveyou.22、Iwalked，inasmile，pleaselookthroughme.23、Ip

4、retendIdon'tcareyoubutstillIfeelthepain.24、Iliketopresentmyself.Imissoutpast！25、Iamnotgivingup，Iamjuststaringover.26、Everyoneishappy.But，yourhappiness，oftenintheeyesofothers.27、Derailmentofamaninlove.28、BecauseIlike，soreluctantly，notsomuchwhy.29、Benicetopeopleonthewayup，becauseyou'llneedthemonyo

5、urwaydown.30、Atthattime，Ialsosunthannow.31、Approachingyou，Igethurt，andleavingyou，Iwillbelonely.32、Alwayswaitingforyou.33、Alloflifeisanactoflettinggo，butwhathurtsthemostisnottakingamomenttosaygoodbye.34、Acontentedmindisthegreatestblessingamancanenjoyinthisworld.串、并联电路中电压的规律第十六章第２节本节课要完成下列三项实验任务：L

6、2L1一、探究串联电路电压的规律L1L2二、探究并联电路电压的规律三、电池串联时的电压规律：2．串联电路电压会有什么关系？1．为什么两灯的发光情况会不一样？不同规格的两灯泡串联。闭合开关，两灯都能发光吗？发光亮度一样吗？观察并思考提出问题L1L2一、探究串联电路电压的规律设计实验电路并画出电路图。猜想假设设计实验L2ABCL1UU1U2U=U1+U21．调节电压表指针指零，检查器材；2．按照电路图连接电路。断开开关，检查电路；3．用电压表测量灯L1两端的电压，记为U1；4．用电压表测量灯L2两端的电压，记为U2，测量灯L1、L2两端的总电压为U，记入表格；5．更换灯泡，重复步骤3、4；

7、实验步骤6．总结总电压和分电压关系。L1L2进行实验153—V5032101015U1/VU2/VU总/V1.31.73.0设计表格并记录数据初步结论串联电路总电压等于各部分两端电压之和。上述实验过程和结论有什么不妥之处？本实验是探究实验，如果只收集一组数据所得出的结论具有偶然性，应该换不同的灯泡或电源进行实验再收集几组数据。表格设计如下：L1两端的电压U1/VL2两端的电压U2/V两灯串联部分两端的总电压U/V1.31.73.01.51.53