《探究弹性势能表式达说课课件文档资料》由会员分享，可在线阅读，更多相关《探究弹性势能表式达说课课件文档资料（23页珍藏版）》请在金锄头文库上搜索。
1、高中物理人教版必修2兴业高中：陈业锋兴业高中：陈业锋Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with A
2、spose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.一、教材分析二、学情分析三、目标分析四、教法与学法五、教学过程六、教学总结与反思七、板书设计Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5
3、Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Pr
4、ofile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.一、教材分析n探究弹性势能的表达式是人教版物理必修探究弹性势能的表达式是人教版物理必修2 2第第七章第五节内容，关于弹性势能的表达式，七章第五节内容，关于弹性势能的表达式，在新课标中没有明确提出要求，本教科书中在新课标中没有明确提出要求，本教科书中设置这个内容的原因是，希望通过自主的探设置这个内容的原因是，希望通过自主的探索行为，索行为，学习科学探究方法，养成良好的思学习科学探究方法，养成良好的思维习惯维习惯 。本节内容是在学习
5、重力势能后的进。本节内容是在学习重力势能后的进一步拓展通过对两种势能的认识过程，为后一步拓展通过对两种势能的认识过程，为后面动能定理和机械能守恒定律的学习打下良面动能定理和机械能守恒定律的学习打下良好的基础。好的基础。Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Lt
6、d.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.创设新奇的物理情景创设新奇的物理情景 、注重前、注重前后知识的类比、由
7、感性到理性后知识的类比、由感性到理性的认识的认识对策对策二、学情分析二、学情分析Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.
8、Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.弹性势能的概念弹性势能的概念会分析决定弹性会分析决定弹性势能大小的相关势能大小的相关因素因素理解理解掌握掌握知识知识与与技能技能三、目标分析三、目标分析Evaluation only.Evaluation o
9、nly.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Creat
10、ed with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.过程过程与与方法方法经历经历感悟感悟体会体会类比方法、微分思类比方法、微分思想和积分思想在物想和积分思想在物理中的应用理中的应用 化变力为恒力化变力为恒力的思想方法的思想方法 科学探究的一科学探究的一般思路般思路. 三、目标分析三、目标分析Evaluation only.Evaluation only.Created with Aspose.
11、Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides fo
12、r .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.情感态情感态度度价值观价值观三、目标分析三、目标分析 体验科学探究体验科学探究的乐趣，形成对的乐趣，形成对科学的好奇心与科学的好奇心与求知欲。从而认求知欲。从而认真观察生活、思真观察生活、思考生活中的物理考生活中的物理现象现象 感受弹性势能感受弹性势能在生活中的应用、在生活中的应用、培养培养“从生活中从生活中来，到生活中去来，到生活中去”的意识的意识激发应用物理激发应用物理知识进行科学知识
13、进行科学探究的兴趣探究的兴趣Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides
14、 for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 教学重点：教学重点： 教学难点：教学难点：三、目标分析三、目标分析 教学重难点教学重难点Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profil
15、e 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0
16、.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.教教 师师学生学生参与参与启发启发自主自主合作合作探究探究赞赏赞赏四、教法学法四、教法学法新课标的理念倡导新课标的理念倡导“以人为本以人为本”，强调，强调“以学生发展为核心以学生发展为核心”Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5
17、 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 200
18、4-2011 Aspose Pty Ltd.五、教学过程五、教学过程 创设情景创设情景 引入概念引入概念以上小实验、视频、图片中的现象以上小实验、视频、图片中的现象有什么共同特点？说明了什么问题？有什么共同特点？说明了什么问题？Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose P
19、ty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.n发生弹性形变的物体的各部分之间，由发生弹性形变的物体的各部
20、分之间，由于有弹力的相互作用，也具有势能，这于有弹力的相互作用，也具有势能，这种势能叫做弹性势能种势能叫做弹性势能五、教学过程五、教学过程 创设情景创设情景 引入概念引入概念想想一一想想？如何去探究弹性势能的表达式呢？如何去探究弹性势能的表达式呢？弹性势能弹性势能Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright
21、2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.n研究重力势能时，我们通
22、过研究重力做研究重力势能时，我们通过研究重力做功得到了重力势能的表达式；那么探究功得到了重力势能的表达式；那么探究弹性势能时，应先分析弹力做功的情况。弹性势能时，应先分析弹力做功的情况。五、教学过程五、教学过程 创设情景创设情景 引入概念引入概念类比类比我们该研究谁呢，从我们该研究谁呢，从何处入手？何处入手？Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Pro
23、file 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspo
24、se Pty Ltd.五、教学过程五、教学过程情景情景猜测猜测 弹簧滑块弹簧滑块 劲度系数、伸长量劲度系数、伸长量实验探究实验探究_弹性势能的影响因素弹性势能的影响因素Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Asp
25、ose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.五、教学过程五、教学过程情景情景猜测猜测实验探究实验探究评价评价 弹簧滑块弹簧滑块 劲度系数、伸长量劲度系数、伸长量 分
26、组实分组实验验操作并体会操作并体会 验证猜测、修订验证猜测、修订实验探究实验探究_弹性势能的影响因素弹性势能的影响因素Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation on
27、ly.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.理论探究理论探究_探究弹簧弹性势能表达式？探究弹簧弹性势能表达式？五、教学过程五、教学过程模模 型型? ? 零势能零势能? ?猜猜 测测? ?Evaluation onl
28、y.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile
29、 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.理论探究理论探究_设计探究方案设计探究方案五、教学过程五、教学过程模型模型零势面零势面猜表达式猜表达式 缓慢拉动弹簧做功缓慢拉动弹簧做功 弹簧原长位置弹簧原长位置功能关系功能关系 w= EpEvaluation only.Evaluation only.Created with Aspose.Slides for
30、.NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5
31、Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.理论探究理论探究_如何如何求变力做功求变力做功? ?五、教学过程五、教学过程WWF F1 1 l l1 1F F2 2 l l2 2F F3 3 l l3 3WWmgmgh h1 1mgmg h h2 2mgmg h h3 3 ？Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0
32、.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyri
33、ght 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.五、教学过程五、教学过程 匀变速直线匀变速直线运动位移运动位移 弹簧弹力弹簧弹力所做的功所做的功理论探究理论探究_如何如何求变力做功求变力做功? ?Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copy
34、right 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.五、教学过程
35、五、教学过程理论探究理论探究_得出结论得出结论猜测正确？猜测正确？成立条件？成立条件？如何检验？如何检验？单位检验单位检验表达式表达式分析分析验证验证得出得出结论结论Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspo
36、se Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.六、教学总结与反思六、教学总结与反思 弹性势能的概念，弹簧弹性势能的表达式弹性势能的概念，弹簧弹性势能的表达式12科学探究
37、的过程：提出问题、猜想与假设、科学探究的过程：提出问题、猜想与假设、设计方案、实验或逻辑推理、修正和推广设计方案、实验或逻辑推理、修正和推广3思想方法：类比，迁移、微分、积分、图象法思想方法：类比，迁移、微分、积分、图象法我的收获我的收获我的困惑我的困惑4期待你的表达期待你的表达Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Co
38、pyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 有一握
39、力器原来处于自然状态，现对它施加压有一握力器原来处于自然状态，现对它施加压力，使它变扁，在这个过程中关于弹力做功与弹力，使它变扁，在这个过程中关于弹力做功与弹性势能的变化关系，以下说法中正确的是：性势能的变化关系，以下说法中正确的是：A.A.弹力做正功，弹簧的弹性势能增加弹力做正功，弹簧的弹性势能增加A.A.弹力做正功，弹簧的弹性势能减小弹力做正功，弹簧的弹性势能减小A.A.弹力做负功，弹簧的弹性势能增加弹力做负功，弹簧的弹性势能增加A.A.弹力做负功，弹簧的弹性势能减小弹力做负功，弹簧的弹性势能减小练一练练一练物理从生活中来，又到生活中去物理从生活中来，又到生活中去Evaluation on
40、ly.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profil
41、e 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.七、板书设计七、板书设计 一、弹性势能的概念二、探究弹性势能的表达式 1、提出问题 2、类比、猜想 3、讨论设计实验4、实验探究（控制变量法）5、定量分析、理论探究6、单位计算验证 7、结论Evaluation only.Evaluation only.Created with Aspose.Slides for
42、 .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5
43、 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.
