檢視杠杆原理的原始碼

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|<center><img src=https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fwww.pep.com.cn%2Fczwl%2Fjszx%2Ftbjx%2Fsj%2Fjxsj8x%2Fsj913%2F201008%2FW020100825349974011443.gif&refer=http%3A%2F%2Fwww.pep.com.cn&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=auto?sec=1653117999&t=453917a2b4db38288bca65b053ab26a4 width="300"></center>
<small>[https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E6%9D%A0%E6%9D%86%E5%8E%9F%E7%90%86&step_word=&hs=0&pn=49&spn=0&di=7077204560107798529&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=5347479%2C4246514715&os=695019341%2C2690248676&simid=4202858204%2C586614355&adpicid=0&lpn=0&ln=1832&fr=&fmq=1650525886968_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined&copyright=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=https%3A%2F%2Fgimg2.baidu.com%2Fimage_search%2Fsrc%3Dhttp%3A%2F%2Fwww.pep.com.cn%2Fczwl%2Fjszx%2Ftbjx%2Fsj%2Fjxsj8x%2Fsj913%2F201008%2FW020100825349974011443.gif%26refer%3Dhttp%3A%2F%2Fwww.pep.com.cn%26app%3D2002%26size%3Df9999%2C10000%26q%3Da80%26n%3D0%26g%3D0n%26fmt%3Dauto%3Fsec%3D1653117999%26t%3D453917a2b4db38288bca65b053ab26a4&fromurl=ippr_z2C%24qAzdH3FAzdH3F33f_z%26e3Bx7jmn_z%26e3Bv54AzdH3F3tw5y7x7jxtkwAzdH3FuwgojgAzdH3FuwgftAzdH3Fdald90b_z%26e3Bip4s&gsm=31&rpstart=0&rpnum=0&islist=&querylist=&nojc=undefined&dyTabStr=MCwyLDMsNSw0LDYsMSw4LDcsOQ%3D%3D 来自 呢图网 的图片]</small>
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中文名；杠杆原理

外文名；gangganyuanli

别称；杠杆平衡条件

表达式；F1· L1=F2·L2

提出者；阿基米德

应用学科；物理

适用领域范围；力学

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杠杆又分成费力杠杆、省力杠杆和等臂杠杆，'''杠杆原理'''也称为“杠杆平衡条件”。要使杠杆平衡，作用在杠杆上的两个力矩（力与力臂的乘积）大小必须相等。即：动力×动力臂=阻力×阻力臂，用代数式表示为F1·l1=F2·l2。式中，F1表示动力，l1表示动力臂，F2表示[[阻力]]，l2表示阻力臂。从上式可看出，要使杠杆达到平衡，动力臂是阻力臂的几倍，阻力就是动力的几倍。来源于《[[论平面图形的平衡]]》。<ref>[https://www.360kuai.com/pc/9d721358102a76b73?cota=3&kuai_so=1&sign=360_7bc3b157&refer_scene=so_55 杠杆原理的简单应用 快拨原理简介],快资讯 , 2021-05-14</ref>