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

百度教育 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

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

百度教育 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

如图所示为杠杆与�轮的组合应用现处于静止状态且杠杆水平已知�轮下所挂重物的质量m=51kg�轮重30N不计绳重�擦和杠杆自重．已知 sketch template

物理实验小组的同学利用如图所示的装置在杠杆支点的两边分别挂上钩码来探究杠杆的平衡条件．1如图甲所示为使杠杆在水平位置平衡应将右端的 sketch template

百度教育 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

一轮复习：有关安培力的立体图转平面图 知乎 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，匝数为N、面积为S的闭合线圈放在磁场中，磁场与线圈平面垂直，磁感应强度的变化规律为则（ sketch template

如图甲所示，一物块以一定初速度沿倾角为的固定斜面上高途 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

用四个�轮和两根相同的绳子组成如图所示的甲、乙两个�轮组用它们匀速提起货物在绳自由端施加竖直的拉力分别为F甲和F乙物重分别为G甲和G乙 sketch template

体积相同而材料不同的小球甲、乙、丙、丁静止在容器的水中如图所示这四个小球所受的浮力分别为F甲、F乙、F丙、F丁则下列判断正确的是 A 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

如图甲所示，小童在�上看到一个神奇的实验，利用四个梯形的�料片，围成一圈立在手机上，就可以将手机上的影像成在空中，形成具有“3D”效果的“全息 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

如图甲所示两根足够长的平行光��属导轨MNPQ被固定在水平面上导轨间距L＝06 M两导轨的左端用导线连接电阻R1及理想电压表电阻r 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

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

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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在无风的天气船在水中匀速前行时人在船尾竖直�上蹦跳起来他落在 A船尾原处B船头C在水中D无法确定——青夏教育精英家教�—— sketch template

13．如图所示杠杆OA处于平衡状态在图中分别画出力F1和F2对支点O的力臂l1和l2——青夏教育精英家教�—— sketch template

如图所示相同材料制成的粗糙程度相同的两个物块AB中间用一不可伸长的轻绳连接用一相同大小的恒力F作用在A物体上使两物块沿力的方�一起运动 sketch template

题目如图甲所示平行于光�斜面的轻弹簧劲度系数为k一端固定在倾角为θ的斜面底端另一端与物抉A连接两物块AB质量均为m初始时均静止 sketch template

下图为渗透作用实验开始时如图甲所示A代表清水BC代表蔗糖溶液过一段时间后结果如图乙漏斗管内液面不再变化h1h2表示漏斗内液面与 sketch template

题目如图所示 甲乙两人在光�的冰面上拔河两人中间位置处有一分界线约定先使对方过分界线者为赢若绳子质量不计则下列说法正确的是 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

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