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小明在滑梯上突然被小朋友从后面推了一下,飞快地滑了下来,吓得大声哭叫,下列哪种处理方式最为合理()
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某大型游乐场内的新型滑梯可以等效为如图9所示的物理模型一个小朋友在AB段的动摩擦因数μ1<tanθB
点开始下滑,滑到C.点恰好静止,整个过程中滑梯保持静止状态,则该小朋友从斜面顶端A.点滑到底端C.点的过程中 A.地面对滑梯的摩擦力方向先水平向左,后水平向右
地面对滑梯始终无摩擦力作用
地面对滑梯的支持力的大小始终等于小朋友和滑梯的总重力的大小
地面对滑梯的支持力的大小先小于、后大于小朋友和滑梯的总重力的大小
如图所示是小朋友坐滑梯的情景下列说法正确的是:
滑道表面很光滑.是为了增大摩擦;
小朋友下滑过程中速度增大,机械能增大;
小朋友从滑梯上滑下后,由于惯性在水平面上还能滑行一段距离;
下滑过程中。重力对小朋友不做功.
小明在滑梯上突然被小朋友从后面推了一下飞快地滑了下来吓得大哭 作为老师下列哪种处理方式最为合理
立刻制止小明哭叫, 尽快恢复秩序
察看小明是否受伤, 同时不立刻制止他哭, 让他把内心的恐惧发泄出来
马上找闯祸的小朋友, 批评他, 以安慰小明
旁观
游乐场中的一种滑梯如图7所示小朋友从轨道顶端由静止开始下滑沿水平轨道滑动了一段距离后停下来则
下滑过程中支持力对小朋友不做功
下滑过程中小朋友的重力势能增加
整个运动过程中小朋友的机械能守恒
在水平面滑动过程中摩擦力对小朋友做负功
在幼儿园开展的户外活动中小明和小刚一起玩滑梯玩的过程中小明推了小刚一下小刚摔倒地面老师马上从教室跑出
幼儿园
小明监护人
小刚监护人
小明监护人和幼儿园
请结合材料从教育观的角度评析姜老师的教育行为
一个小朋友从滑梯的顶端匀速地滑到滑梯的底部在这个过程中该小朋友具有的机械能填增大不变或减小能的转化情
一个小朋友从滑梯的顶端匀速地滑到滑梯的底部在这个过程中该小朋友具有的机械能填增大不变或减小能的转化情
游乐场中的一种滑梯如图所示小朋友从轨道顶端由静止开始下滑沿水平轨道滑动了一段距离后停下来则
下滑过程中支持力对小朋友不做功
下滑过程中小朋友的重力势能增加
整个运动过程中小朋友的机械能守恒
在水平面滑动过程中摩擦力对小朋友做负功
三个班小朋友在大型玩具上滑滑梯一个要从上面滑下来其中一个非要从下面往上爬 另一个在滑梯下面拽往上爬的
一个小朋友从滑梯的顶端匀速地滑到滑梯的底部在这个过程中该小朋友具有的机械能填增大不变或减小能的转化情
一个小朋友从滑梯的顶端匀速地滑到滑梯的底部在这个过程中该小朋友具有的机械能填增大不变或减小能的转化情
某大型游乐场内的新型滑梯可以等效为如图所示的物理模型一个小朋友与斜面在AB段的动摩擦因数μ1tanθ
地面对滑梯的摩擦力方向先水平向左,后水平向右
地面对滑梯始终无摩擦力作用
地面对滑梯的支持力的大小始终等于小朋友和滑梯的总重力的大小
地面对滑梯的支持力的大小先大于、后小于小朋友和滑梯的总重力的大小
周日爸爸带小阳去极地馆旅游小阳从高高的水滑梯上顺着水流滑下飞快地冲入水中入水后他继续向前冲出一段距离
某大型游乐场内的新型滑梯可以等效为如图所示的物理模型一个小朋友在AB段的动摩擦因数μ1<tanθBC
点开始下滑,滑到C.点恰好静止,整个过程中滑梯保持静止状态.则该小朋友从斜面顶端A.点滑到底端C.点的过程中 A.地面对滑梯的摩擦力方向先水平向左,后水平向右
地面对滑梯始终无摩擦力作用
地面对滑梯的支持力的大小始终等于小朋友和滑梯的总重力的大小
地面对滑梯的支持力的大小先小于、后大于小朋友和滑梯的总重力的大小
某大型游乐场内的新型滑梯可以等效为如图所示的物理模型一个小朋友在AB段的动摩擦因数μ1<tanθBC
点开始下滑,滑到C.点恰好静止,整个过程中滑梯保持静止状态.则该小朋友从斜面顶端A.点滑到底端C.点的过程中 ( )A.地面对滑梯的摩擦力方向先水平向左,后水平向右
地面对滑梯始终无摩擦力作用
地面对滑梯的支持力的大小始终等于小朋友和滑梯的总重力的大小
地面对滑梯的支持力的大小先小于、后大于小朋友和滑梯的总重力的大小
某大型游乐场内的新型滑梯可以等效为如图所示的物理模型.一个小朋友在AB段的动摩擦因数μ1<tanθB
点开始下滑,滑到C.点恰好静止,整个过程中滑梯保持静止状态.则该小朋友从斜面顶端A.点滑到底端C.点的过程中( )
A. 地面对滑梯始终无摩擦力作用
地面对滑梯的摩擦力方向先水平向右,后水平向左
地面对滑梯的支持力的大小始终等于小朋友和滑梯的总重力的大小
地面对滑梯的支持力的大小先小于、后大于小朋友和滑梯的总重力的大小
阅读下面材料回答问题王老师带孩子们去多媒体教室观看恐龙的课件在回教室的路上有一位幼儿不小心滑倒了虎虎
某大型游乐场内的新型滑梯可以等效为如图所示的物理模型.一个小朋友在AB段的动摩擦因数μ1<tanθB
点开始下滑,滑到C.点恰好静止,整个过程中滑梯保持静止状态.则该小朋友从斜面顶端A.点滑到底端C.点的过程中 A.地面对滑梯的摩擦力方向先水平向左,后水平向右
地面对滑梯始终无摩擦力作用
地面对滑梯的支持力的大小始终等于小朋友和滑梯的总重力的大小
地面对滑梯的支持力的大小先大于、后小于小朋友和滑梯的总重力的大小
某大型游乐场内的新型滑梯可以等效为如图所示的物理模型一个小朋友在AB段的摩擦因数μ1他从
点开始下滑,到C.点刚好停止,整个过程中滑梯保持静止状态,则该小朋友从A.点到C.点的过程中( ) A.地面对滑梯的摩擦力方向先水平向右,后水平向左
地面对滑梯始终没有摩擦力作用
地面对滑梯的支持力始终等于小朋友和滑梯的总重力的大小
地面对滑梯的支持力先小于后大于小朋友和滑梯的总重力的大小
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E Aroundtheworldmoreandmorepeoplearetakingpartindangeroussportsandactivities.Ofcoursetherehavealwaysbeenpeoplewhohavelookedforadventures——thosewhohaveclimbedthehighestmountainstraveledintounknownpartsoftheworldorsailedinsmallboatsacrossthegreatestoceans.Nowhowevertherearepeoplewholookforanimmediateexcitementfromariskyactivitywhichmayonlylastafewminutesorevenseconds. Iwouldconsiderbungeejumpingtobeagoodexampleofsuchanactivity.Youjumpfromahighplaceperhapsabridgeorahot-airballoon200metresabovethegroundwithanelastic有弹性的ropetiedtoyourankles.Youfallatupto150kilometresanhouruntiltheropestopsyoufromhittingtheground.Itissaidthatabout2millionpeoplearoundtheworldhavenowtriedbungeejumping.Otheractivitieswhichmostpeoplewouldsayareasriskyasbungeejumpingincludejumpingfromtallbuildinganddivingintotheseafromthetopofhighcliff悬崖. WhydopeopletakepartinsuchactivitiesastheseSomepsychologistssuggestthatitisbecauselifeinmodernsocietieshasbecomesafeandboring.Notverylongagodiseasescouldnoteasilybecuredandlifewasacontinuousbattleforsurvival生存. Nowadaysaccordingtomanypeoplelifeofferslittleexcitement.Theyliveandworkincomparativelysafeconditionstheybuyfoodinshopsandtherearedoctorsandhospitalstolookafterthemiftheybecomeill.Theanswerforsomeofthesepeopleistolookfordangerinactivitiessuchasbungeejumping. Peopleprobablytakepartindangeroussportsnowadaysbecause_______.
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在教育对象问题上提出有教无类主张的是
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AboutthreeyearsagoIfeltverylonely.Ididn’tlikemyclassmatesmyparentsoranyoneelse.Myclassmatesdidn’twanttotalk61meandmyparentswerealwayssayingthatotherkidswerebetterthanme.IthoughtIwasthe62unluckypersonintheworld. OnedayIhadabigfightwithoneofmyclassmates.Iwassoangry63Ihithimintheface.Justatthatmomentaboystoodupand64thefight.Hewasthemonitorofmyclass. Afterthatheoftenhelpedmeandwebecamegood65.WheneverIgotangryorsadhewouldhelp66tocooldown.Mylifebegantochangebecauseoftheboymybestfriend.Wespentalotofinterestingdaystogether.As67goesbyIhavebecomehappierwithpeopleandthings.Andit68thatpeoplearoundmehavechangedtoo.Myparentsdon’tshoutatme69moreandmyclassmatesbecomefriendlytome. ButnowIcan’toftenseemybestfriendbecauseheisseriously70andisstayinginhospital.HowImissthedayswhenweweretogether!Ihopehewillbeallrightandcomebacktoschoolsoon. 61.____62.______63.______64.______65._______ 66.____67.______68.______69.______70._______
简述学生学习的特点
主张教育目的要根据社会需要来决定认为个人只是教育加工培养的对象教育的目标在于把受教育者培养成符合社会准则文化教育的公民观点的是
下列属于内部感觉的有
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道家的教育主张行不言之教
你的英国朋友正在做一个课题世界各地的生日庆祝方式他请你介绍中国学生过生日的方式请你根据以下要点写一篇短文 1.通常方式 1生日聚会 2生日礼物 3生日祝福 2.我认为更有意义的庆祝方式和理由 注意词数在100词以上
德育起于道德知识教育终于道德行为
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教学原则
AboutthreeyearsagoIfeltverylonely.Ididn’tlikemyclassmatesmyparentsoranyoneelse.Myclassmatesdidn’twanttotalk61meandmyparentswerealwayssayingthatotherkidswerebetterthanme.IthoughtIwasthe62unluckypersonintheworld. OnedayIhadabigfightwithoneofmyclassmates.Iwassoangry63Ihithimintheface.Justatthatmomentaboystoodupand64thefight.Hewasthemonitorofmyclass. Afterthatheoftenhelpedmeandwebecamegood65.WheneverIgotangryorsadhewouldhelp66tocooldown.Mylifebegantochangebecauseoftheboymybestfriend.Wespentalotofinterestingdaystogether.As67goesbyIhavebecomehappierwithpeopleandthings.Andit68thatpeoplearoundmehavechangedtoo.Myparentsdon’tshoutatme69moreandmyclassmatesbecomefriendlytome. ButnowIcan’toftenseemybestfriendbecauseheisseriously70andisstayinginhospital.HowImissthedayswhenweweretogether!Ihopehewillbeallrightandcomebacktoschoolsoon. 61.____62.______63.______64.______65._______ 66.____67.______68.______69.______70._______
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