铁锹杠杆示意图
![他说得有道理吗?你觉得是否可行?四,拓展反思1.杠杆有哪些部分组成?](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A7315092B06F6CFE539471663F225B14F5625874969659F0BD53E35AF07FEA6D9185C8D0203759AD34BDABF1C83F3963F70E4344742CB333A23259E482BF9AB5A7843ECB9664E0D353C8A59932F33A5CE1C)
他说得有道理吗?你觉得是否可行?四,拓展反思1.杠杆有哪些部分组成?
图片尺寸859x473![铁锹是一种杠杆,请在下图画出(f_{1})和(f_{2})的力臂(l_{1})和](https://imgs.wantubizhi.com/img/A1A61BAA66193547F3A6DD7D8EE527E91426852817FB50882091DA6F55EB699963351F1600EBD8A62AD47C90E27A313ED5A2656FDCF1A98F66AC2DEC23C82E1EB276D28C3EDE3135360089A7EC570D719105442DCB4509301C24BE1C4C0078C1)
铁锹是一种杠杆,请在下图画出(f_{1})和(f_{2})的力臂(l_{1})和
图片尺寸150x176![如图所示为人们生活中常用的铁锨示意图,请画出人手所用最小动力f1的](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A73ECB59FF8E85D198198D949F6841ADEA565CAB76FEC5C0AD0A0A432C3CE0826DF12224CEADF5972CF7B29B312BD4D763FB5A49D1CEF32AFCE7252573B81FC8982C12D6B722006A5EBB6930BB56B153B51)
如图所示为人们生活中常用的铁锨示意图,请画出人手所用最小动力f1的
图片尺寸330x153![铁锹是省力杠杆还是费力杠杆儿](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A73274F14E7AC89F91D9B13954C2D6176E8BD04214526AA386D2162836510002C7D06DB3996733AA4E220FCB4B99E2C76425D96FCC50EF97D550BDF1B24C7F6C88D95432DFFFA7D0517C2BE26572A93EF02)
铁锹是省力杠杆还是费力杠杆儿
图片尺寸361x600![3杠杆类工具的研究课件素材共17张ppt](https://imgs.wantubizhi.com/img/ADDA3C5D760C6828B77B505A29D43E83A3DCB381F6C966E4757ED9D5D8A9E9369EDB1A816AD8DAB88008724AC6DA748F4548BB74B8455BDC9FC4417EB7E3850110BAB7F33661AC0E40D27DEC9375D08F5A938C0B670ECEBAECEC57267D8D10BB)
3杠杆类工具的研究课件素材共17张ppt
图片尺寸720x540![3铁锹是一种杠杆请在图12上画出f1和f2的力臂l1和l22分](https://imgs.wantubizhi.com/img/A1A61BAA66193547F3A6DD7D8EE527E9A1B9A03E40E09642069EEE6083195E59CDDFA017ADE447B118EBD7F43A5A2C143301D3F770616261CF7019ABFFFF0C89FDD6EDD04A5ADC2E58B923E7D1FC31C3C502DA8449EA814AA09916A27FBA8FD9)
3铁锹是一种杠杆请在图12上画出f1和f2的力臂l1和l22分
图片尺寸108x149![如图所示是使用铁锹时作用在铁锹上的力f1f2请作出图中力f1f2的力臂l1](https://imgs.wantubizhi.com/img/ADDA3C5D760C6828B77B505A29D43E83DEA67360B5FFF390B8824D8545AEAE46E4B8B1F63286E24FB794BFF415AEB90DE763B5A52FEDD48F36931C132F857A150A6C3ACB61A1BA7569A2204FAD1384A27782AA8C8F686812C08FBCF92CFD170D)
如图所示是使用铁锹时作用在铁锹上的力f1f2请作出图中力f1f2的力臂l1
图片尺寸214x415![杠杆如何分类?比比力臂就知道](https://imgs.wantubizhi.com/img/ADDA3C5D760C6828B77B505A29D43E836B25212E1E756C2038F7525A3A5D356C4F3658DBE1C9102070C84F27DF56F9A9D56FFFB37AFEBE82920B739C0ACA9EC91E561CA0CECFEE1F42CF9B7FA0682C678D8B2EF758A43CF646759FCF2162D4E5)
杠杆如何分类?比比力臂就知道
图片尺寸266x322![物理资料 杠杆定义 1,如果把铁锹看作费力杠杆,在图2所示的a, b,c三点](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A73E49DEA853D6DD8DDE4006C84E074F62723862149CF0D082C0E9BE94AB958F72606A421496175BE6E4782A67474F883A93CAD1BD0D6CC6F7D1C297CE8FDF3F5B1D0A400B4FB216F21E447AADD6742AA3F)
物理资料 杠杆定义 1,如果把铁锹看作费力杠杆,在图2所示的a, b,c三点
图片尺寸1080x810![(2004吉林)如果把铁锨看作费力杠杆,在图所示的a,b,c三点中,支点是](https://imgs.wantubizhi.com/img/ADDA3C5D760C6828B77B505A29D43E83871D5D5EAC987292576CE27E6099528683833435B483BD0865D27F07D931CAA27C5F97E533C2D18A9F71340D42FF60112775B5FE40CBFBD6A3E92B8F14AF0D017716F931CFB380C1C68C90A83B56EB8E)
(2004吉林)如果把铁锨看作费力杠杆,在图所示的a,b,c三点中,支点是
图片尺寸128x118![如图所示,铁锹是生活中常见的杠杆,请正确画出动力及动力臂.](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A737CE9ADEE98365173EDF715B6FF2CDCB02894F45D69B0E9EC1286C095DAA396C37C67B710D767CF6CBD6DA11CABC183237A74BB032883A8895300D7AA3E61B6C4A281DFBEDF84E8C0882E897B6445B33A)
如图所示,铁锹是生活中常见的杠杆,请正确画出动力及动力臂.
图片尺寸108x111![指甲剪的哪些部分为省力杠杆,费力杠杆?](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A73CA544F0F2F413A7E4B6E77B6FBC1C0B3FC806E029FA55B8F3DE3BE1026254335212628DB01D6755B9FD72FA836049D1F9AE533E33C745BFF69FAF9E4DB425B7090E8A1AC2F97CB8DBDDDF641407625A2)
指甲剪的哪些部分为省力杠杆,费力杠杆?
图片尺寸475x383![如下图所示,铡刀,瓶盖起子,手推车,铁锨都属于杠杆,在使用过程中](https://imgs.wantubizhi.com/img/A1A61BAA66193547F3A6DD7D8EE527E9C447168707784BCB50784750DF92465045C95B66B53E7DE5D29013FFC600998A03500A580F04D6545B0C648E6F64887A257098B2A84AFBD397F37433ACA32997A84331C1D9C7E38F6B36A145087497D1)
如下图所示,铡刀,瓶盖起子,手推车,铁锨都属于杠杆,在使用过程中
图片尺寸554x126![一种偏转式翻土铁锹](https://imgs.wantubizhi.com/img/A1A61BAA66193547F3A6DD7D8EE527E9A82741B62A56FB082AC482F3108AFA521EC97807AE2D322994DE0F9B7B20971442615BC149832929D22FA5727927952BA20B719EC3C567D7869EA0D042A871934585EB9D3B0B52C996F0E68B278CF92E)
一种偏转式翻土铁锹
图片尺寸303x443![方形铁锹模型](https://imgs.wantubizhi.com/img/A1A61BAA66193547F3A6DD7D8EE527E9C76809C8EB67998048A605677D3443D81482DE78157D5A537EC5961BF149D684AFFF8E833A04B9793A2175AFC26D2DCC3080E1D3D96CC4A0DD2F95D8A8F2EA66CFC8C50AD09772E53DE79CC9D365FCA9)
方形铁锹模型
图片尺寸271x413![接下来就是要说明杠杆原理,也就是杠杆平衡的条件了. 杠杆原理](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A73E534D6EDB9B3EC72F5A9CE03092DB0F19262C1511475F24582433A1B308BCEC7F06165B560D33E9260C5F04788BA264944C8ABADD6B4DAD151AE315DA9A3BA1C52CFEE15C331D5629A0D111F87B23967)
接下来就是要说明杠杆原理,也就是杠杆平衡的条件了. 杠杆原理
图片尺寸640x339![人教版初中九年级物理 科学探究:杠杆的平衡条件 ppt课件 杠杆示意图](https://imgs.wantubizhi.com/img/A1A61BAA66193547F3A6DD7D8EE527E936821558DC1D201B3B8741A118FF410A51420D0B35DC2AFE0F556356C81566E583CAB48B77012C5828B7FE8FF57FA258B481648D11D72B5B1F38588827D0228BBED05F871A4E966CFACF1080295D9154)
人教版初中九年级物理 科学探究:杠杆的平衡条件 ppt课件 杠杆示意图
图片尺寸1080x810![请在图甲中画出木棒所受拉力的力臂l及所受重力的示意图.](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A731E34F553EF871B4BA58182CE27B4218375BD5F6E537D9F0B79A17C95D432C26FE5B210B93A64DF5E7097385B0190533856F0441EC7BBB63C442E3E70596B227FFDF50CECA9DA5038C478AD34B9806FEA)
请在图甲中画出木棒所受拉力的力臂l及所受重力的示意图.
图片尺寸156x202![比普通的指甲刀要长一点,但是商家好聪明,完美利用杠杆原理来省力](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A732BC94803B10C50CA97D4327C483CE265893B79CF8E14D02A4C87312322DA9B0B679C0F2A1C3481E0A0AD387B5C7B1A5C887D4ABC3728A02285B07604799539B418D384F0E8C243FE4DCE892ABDB55EBE)
比普通的指甲刀要长一点,但是商家好聪明,完美利用杠杆原理来省力
图片尺寸1080x1080![3-3认识简单的机械—杠杆(第3课时)ppt](https://imgs.wantubizhi.com/img/ADDA3C5D760C6828B77B505A29D43E83B44E9C8FEF872F0179C52C8816392BDB8A9E32E260B931EE82260D41EF5D75288B02797A1024AB2D7644D449FF60575026DB0909B8179086FA6B0205DC367F73A50BA4BBEAB4943C949781BA2BA376B5)
3-3认识简单的机械—杠杆(第3课时)ppt
图片尺寸1080x810