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

百度教育 sketch template

图甲所示为生活中巧妙地利用两根并排的竹竿，将长方体高途 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

如图所示是古人锻造铁器的过程关于改变物体内能的方式下列说法中正确的是 A 加热和锻打属于热传递淬火属于做功 B 加热属于热传递 sketch template

在现实生活中力的分解有着广泛的应用劈柴用的斧头就是利用了力的分解知识。图甲为劈柴斧头的剖面图用斧头劈柴�们感觉会更容易一些只需用一个 sketch template

质量为60kg的工人用如图甲所示的�轮组运送货物上楼，�轮组的机械效率随货物重力变化的图象如图乙，机械中�擦力及绳重忽略不计，（g＝10N 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

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

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一轮复习：阿特伍德机类型知乎 sketch template

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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

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

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某同学在做“用单�测定重力加速度 的实验．1测�长时测量结果如图甲所示单�的另一端与刻度尺的零刻线对齐�长为9990cm然后 sketch template

如图所示甲乙两物体的s T图像则 A甲乙两物体都作匀速直线运动 B若甲乙两物体在同一直线上运动则一定会相遇 Ct1时刻 sketch template

如图所示为甲乙两物体从同一地点沿直线�同一方�运动的v T图象则 A．甲乙两物体在4s末相距最远B．甲乙两物体在5s末相遇C．前 sketch template

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甲声音波形如图4所示把音调比甲高的乙声音输入同一设置的示波器乙声音的波形是图5中的哪一幅——青夏教育精英家教�—— sketch template

如图所示一光源�出的光经平面镜反射后照射到凹透镜上光线ab与凹透镜的主光轴平行其中F为凹透镜的焦点O为光心。请画出其对应的入射光线及 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

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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

百度教育 sketch template

如图所示用粗细均匀的电阻丝折成平面梯形框架abcd边均与ad边成60°角ab=bc=cd=L长度为L的电阻丝电阻为r框架与一电动势 sketch template

如图甲所示是某兴趣小组在“伏安法测电阻实验中分别作出R1R2的U I图象．小明利用R1R2两个电阻设计了如图乙所示的实验电路此时 sketch template

甲、乙、丙三种固体物质在水中的溶解度曲线如图所示。出卷� sketch template

如图甲所示，、两个物体相互接触，但并不黏合，放置在 高途 sketch template

某简谐振子，自由振动时的振动图像如图甲中的曲线Ⅰ所 高途 sketch template

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