湖北省武汉市高中物理第三章相互作用3.4受力分析导学案(无答案)新人教版必修1.doc

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13.4 受力分析【学习目标】1、通过讲解和例题训练,能掌握弹力与摩擦力的分析方法;2、通过小组讨论与例题训练,能准确画出受力示意图,并能进行简单的分析【重点难点】重点、难点:利用受力分析解决实际问题【导学流程】一、基础感知(1) 、知识链接受力分析的一般步骤:二、深入学习例 1、下列各图的接触面均为光滑接触面, 均保持静止状态画出各图中的受力分析图。例题 2、画出下列各图中 A、B、C 各自的受力分析图。2例题 3、分析下列各图中 A、B 物体的受力分析图, (A、B 均处于静止状态)例 4、如图所示,物体质量均为 m,请分析砖与墙及砖与砖的各接触面间是否有摩擦力存在?如有大小是多少?总结:三、迁移运用1、 A 物体静止或匀速,分析 A 物体的受力情况32、分析下列杆所受的力(竖直面光滑,水平面粗糙)BABA匀速, vA

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