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ID:30184628
大小:19.26 KB
页数:10页
时间:2018-12-27
《平抛运动实验报告单》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、为了适应公司新战略的发展,保障停车场安保新项目的正常、顺利开展,特制定安保从业人员的业务技能及个人素质的培训计划平抛运动实验报告单 Aim:Utilizetherelationshipofhorizontaldisplacementandverticaldisplacementoflittleironball toverifyifitisaprojectilemotion? Independentvariable:verticaldisplacement,X Dependentvariable:horizontaldisplacement,Y Controlled
2、variable:①initialspeedofironballwhenitleavesthetrack. ②initialdirectionofironballwhenitleavesthetrack. Methodofcontrollingvariable: ①.Releasetheballfromthesameheightofatrack;forexample,releaseitfromthetopofthetrackeverytime.Sotheinitialvelocitycanbesuretobethesameeachtime. ②Usetheairbu
3、bbleatthebottomofthefacilitytocheckifthefacilityisinhorizon.Iftheairbubbleisinexactmiddleofitsarea,thefacilityishorizontal. Steps(methodsofcollectingdata)目的-通过该培训员工可对保安行业有初步了解,并感受到安保行业的发展的巨大潜力,可提升其的专业水平,并确保其在这个行业的安全感。为了适应公司新战略的发展,保障停车场安保新项目的正常、顺利开展,特制定安保从业人员的业务技能及个人素质的培训计划 1.Pavethecarbo
4、npaperbehindthewhitepapertogetherontheironboardusingmagnettomakeitsticktotheboard. 2.Checkiftheairbubbleisexactlyinitscentralarea.Ifnot,usefloorlevelertoadjustthefacilityuntilfacilityishorizontal. 3.Afterthefacilityishorizontal,releasetheballfromthetopofthetrack.(Makesureithasthesameinit
5、ialspeedeachtime.) 4.Elevatethebaffleplateupwardsomedistance.5.Redostep3and4for5times 6.Userulermeasurethedotsonthewhitepaper Experimentapparatus:cleanwhitepaper,carbonpaper,ruler,littleironball,ironboardand irontape,afacilityshownbelow.Thegraphofapparatus: Methodforverifyingifitisapr
6、ojectilemotion目的-通过该培训员工可对保安行业有初步了解,并感受到安保行业的发展的巨大潜力,可提升其的专业水平,并确保其在这个行业的安全感。为了适应公司新战略的发展,保障停车场安保新项目的正常、顺利开展,特制定安保从业人员的业务技能及个人素质的培训计划 Explanation:Forprojectilemotionwhichhasnoverticalvelocity,itcanbedividedinto2separateparts,horizontalpartandverticalparttoanalyze.Horizontally,itisaconstan
7、tlinearmotion.Vertically,itisafreefallmotion. Mathematically,∵x=v0t ∵y=→t=(2y/g)∴x=v0(2y/g) Andeachv0=x(g/2y) ∴ifv01=v02=v03=v04=v05,itissatisfiestherelationshipinprojectilemotion. Dataprocess(g=980cm/s2) 1stdot v01=x1(g/2y1)=(980/2×)=×10cm/sUncertainty
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