如图甲所示为古人巧妙应用杠杆的智慧结晶——舂，当人用力踩横木一端时，松脚后横木绕某点转动，另一端碓头下落，击打石臼内的谷物。图乙是用力踩在横木 Sketch Coloring Page

如图甲所示为古人巧妙应用杠杆的智慧结晶——舂，当人用力踩横木一端时，松脚后横木绕某点转动，另一端碓头下落，击打石臼内的谷物。图乙是用力踩在横木 Template

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tomski如图甲所示为古人巧妙应用杠杆的智慧结晶——舂，当人用力踩横木一端时，松脚后横木绕某点转动，另一端碓头下落，击打石臼内的谷物。图乙是用力踩在横木 coloring

如图甲所示为古人巧妙应用杠杆的智慧结晶——舂，当人用力踩横木一端时，松脚后横木绕某点转动，另一端碓头下落，击打石臼内的谷物。图乙是用力踩在横木 sketch template

7．桔槔是�国古代劳动人�在生产实践中�明创造的一种巧妙地运用杠杆原理的提水工具．如图所示设配重A重30NCODO=21木桶重20N sketch template

投石机是�国古代一种有力的攻城武器它的主体是一个杠杆可用其将巨石抛出．如图乙是一个简易投石机抛出石头的过程AOB为主体杠杆O为支点．B sketch template

在�国古代书籍中对杠杆原理有精辟论述并有许多巧妙的应用如图所示是在井上汲水的桔槔下列对桔槔在使用中不正确的解释是 A．�井内放送水桶时 sketch template

如图甲所示，桔槔是�国古代汲水的一种器具，可看作杠杆，图乙是其简化示意图。请在图乙的A点中作出水桶所受重力G的示意图，并画出力F1的力臂l1。 sketch template

如图所示是古代入撬石头时的示意图请在图中画出力F对支点O的力臂并用字母L标明．题目和参考答案——青夏教育精英家教�—— sketch template

百度教育 sketch template

百度教育 sketch template

如图甲所示的杠杆是平衡的若如图乙所示在支点两侧的物体下方分别加挂一个等重的物体杠杆A仍能平衡 B不能平衡A端上升 C不能平衡 sketch template

蹦床是青�年喜爱的一种活动，如图甲所示，某物理兴趣小组设计了一种测定蹦床所受压力的装置，其原理图如图乙所示。压敏电阻的阻值随压力的变化而变化 sketch template

如图所示AB是一杠杆可绕支点O在竖直平面内转动AOOB=23ODDB=11�轮重为100N．当在B点施加大小为F的竖直�下的 sketch template

如图甲所示人的手臂相当于一个杠杆它的支点在O点．请你画出图中铅球对手的作用力F的力臂L如图乙所示重为G的木箱A静止在斜面上请作出木箱 sketch template

如图甲所示�国“�阳红09 母船正在进行投放“蛟龙号载人深潜器试验调控两根伸缩杆使“∩ 形架绕固定在甲板上的转轴转动至图甲所示位置时 sketch template

如图所示小明分别用甲乙两�轮把同一桶沙子从一楼地面提到二楼地面用甲�轮所做的总功为W1机械效率为η1用乙�轮所做的总功为W2机械效率 sketch template

滨州黄河大桥如图甲所示若将大桥斜拉部分的一半简化成图乙所示的杠杆模型其中O点为支点P为桥面部分的重心请在图乙中画出拉索对桥面拉力F的 sketch template

探究杠杆的平衡条件1如图甲所示若杠杆在使用前左端低右端高要使它在水平位置平衡应将杠杆右侧的螺母�右调节至平衡．杠杆平衡后在整个 sketch template

如图所示小柯积极参加体育锻炼．1图甲所示为小柯初学俯卧�时的姿势图乙所示为他经练习后的俯卧�姿势．图乙中小柯双手所受的支持力＞＞图甲的 sketch template

如图甲所示当用指甲剪剪指甲时指甲剪可以看成是多个杠杆的组合．在乙中画出剪指甲时其中一个杠杆DBE的动力臂L1和阻力F2 题目和参考答案 sketch template

如图所示小明分别用甲乙两�轮把同一桶沙子从一楼地面提到二楼地面用甲�轮所做的总功为W1机械效率为η1用乙�轮所做的总功为W2机械效率 sketch template

如图所示古人将一硬棒悬挂在�枝上绳对杆的动力F1使杆绕0点�生转动提起水桶下列说法正确的是 A．阻碍杆转动的阻力是水和水桶的总重力 sketch template

如图甲所示杠杆AB能绕固定点O在竖直平面内转动水平地面上的配重乙通过细绳竖直拉着杠杆B端．已知AOOB=25配重乙与地面的接触面积为 sketch template

如图所示甲乙丙三个相同的杠杆所挂的物体受到的重力均为G它们分别在方�如图所示的力F1F2F3作用下处于平衡状态那么 A sketch template

一轮复习：有关安培力的立体图转平面图 知乎 sketch template

如图所示甲乙两个物块分别系在一条跨过定�轮的轻绳两端已知甲的质量为300g乙的质量为100g不计�擦g取10m/s2则甲乙运动 sketch template

题目如图甲所示盛有水的薄壁圆柱形容器放在水平桌面上容器的底面积为S弹簧测力计下悬挂一个长方体�属块从水面开始缓慢浸入水中在�属块 sketch template

如图所示甲乙两图都是用来“验证机械能守恒定律 的装置示意图已知该打点计时器的打点�率为50Hz．重力加速度为g1甲乙两图相比较 图 sketch template

如下图为渗透作用实验开始时如图一A代表清水BC代表蔗糖溶液过一段时间后结果如图二漏斗管内液面不再变化H1H2表示漏斗 sketch template

如图甲所示物体甲重20N被50N的水平压力F甲压在竖直墙壁上保持静止．如图乙所示物体乙重60N在30N的水平拉力F乙作用下沿 sketch template

甲乙丙三小球分别位于如图所示的竖直平面内甲乙在同一条竖直线上甲丙在同一条水平线上水平面上的p点在丙的正下方在同一时刻甲乙丙 sketch template

如图甲所示底面积为S1＝690 Cm2的圆柱形容器甲内放置一个底面积S2＝345 Cm2的圆柱形铝筒铝筒内装一铁块已知铝筒和铁块总重40 sketch template

如图所示甲乙两位同学做“拔河游戏．两人分别用伸平的手掌托起长凳的一端保持凳子水平然后各自�两侧拖拉．若凳子下表面各处的粗糙程度相同 sketch template

如图所示，质量为的物体甲通过三段轻绳悬挂，三段轻绳高途 sketch template

如图所示为相距6米在同一水平面上同时开始沿一直线运动的甲乙两辆小车的s T图象则 A．甲乙运动的快慢相同B．运动3秒甲通过的路程比乙 sketch template

如图甲所示，用刻度尺测量一物体的长度，物体的长度为cm；如图乙所示，图中是分度值为01s的机械秒表，其示数是s。 sketch template

小李在“探究物质熔化规律”实验中，所用装置如图甲所示。�在安装器材时应按照选填（“从上到下”或“从下到上”）的顺序安装器材；�从图乙可知物质在 sketch template

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