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《探究凸透镜成像实验准备知识（exploration of convex lens imaging experiment preparation knowledge）》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、探究凸透镜成像实验准备知识（Explorationofconvexlensimagingexperimentpreparationknowledge）Explorationofconvexlensimagingexperimentpreparationknowledge:[Objective]:1.byobservationandexperiment,todeepenunderstandingoftherealandvirtualimage,2.collecttherelevantphenomenaandexperimentaldata,andsumupthelawofconvexlensi
2、maging[preparation]:1.understandthephysicalmeaningofthefollowingopticaltermsrelatedtothelensFocus:focallength:;Object:likethedistance:;Image:image:;2..Asimplemethodtoestimatethefocallengthofconvexlens3.experimentalequipment:Opticalseat;4.steps(1)thefocallengthoftheconvexlensisestimatedtobeaboutcm.(
3、2)theequipmentshouldbeplacedonthehorizontaltableintheexperiment,sothatthecenterofthecandle,convexlensandlightscreenshouldbeatthesameheight.(three),(3)whentheconvexlensintoreality,movinglightscreen,thescreentogetthemostclearimage,lightscreenpositionisthepositionofimage,(4)experiment,payattentiontoth
4、ecollectionofconvexlensintodifferenttypesofimage,objectdistanceandimagedistance,focallengthandrelevantexperimentaldata,andtheexperimentalresultsinthedesignoftheform:Asthenatureoftheexperimentnumberlensfocallengthf/cmu/cmdistanceimagedistancev/cm=1theGB3=2GB3=3,theGB3oftheGB3=4=5,theGB3andtheGB3=7=6
5、*6theGB3andtheGB3=8andGB3=9toGB3=10**.[be]practice:1.toexploretheconvexlensimagingexperiment,WangCongstudentsfirstconvexlensatthesunlight,adjustingthedistancebetweentheconvexlensandthewhite,untilthesunisinthewhitepaperisfocusedintoaminimum,thebrightestpoint,asshowninthefigure,thepurposeofthisist
6、o;(2)intheexperimentofconvexlensimaging,becausetheheightofthecandleflameisnotappropriate,wecangettheincompleteimageonthelightscreen,soweshouldputthecandletothecandletogetthewholeimageofthecandleflameRegulate;2.Xiaomingexploresconvexlensimaginglawwithconvexlens,candle,lightscreenandscaleruler.1assho
7、wn,inordertomeasurethefocallengthoftheconvexlens,theconvexlensXiaoMingstudentsarefacingthesunlight,thenthelightscreenisplacedontheothersideofit,changetheconvexlensandthelightscreendistance,aspotuntiltheligh
