2022年人教版物理八下15.4《动能和势能》WORD教案4 .pdf

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1、名师精编优秀教案动能和势能教学目标 知识与技能（）理解动能和势能的概念；（）了解动能、重力势能的大小各与什么因素有关，并能解释简单的现象。过程和方法通过参与科学探究活动，使学生掌握控制变量法，培养初步的科学探究能力。情感态度与价值观（）使学生通过知识的探索过程形成研究探索意识和敢于创新的精神；（）在与小组成员一起探索的过程中，养成与人共处、协作学习的习惯。教学重点和难点 重点：动能和势能的概念，探究影响动能和重力势能大小的因素；难点：势能的概念课时安排 1 课时教学过程 教师活动学生活动说明一、情景导入播放一段小鸟撞击飞机的视频，学生观察，思考从 生 活走 向名师精编优秀教案再让学生阅读飞机“

2、怕”小鸟的报导，引入新课。物理二、进行新课1能量复习功的两个必要因素，教师演示：拉动木块提问：有没有做功课件展示：四幅具有能量的事例。A.打桩机上被举高的重锤落下来可以把桩打进地里B.被压弯的跳板可以弹起运动员C.子弹能击穿障碍物D.流水能推动竹排提问：这些物体有没有做功？引入能量的初步概念。思考思考，交流，回答问题使 知 识顺 利迁移使 抽 象的 知识形象具体，便 于 学生 接受2.动能（1）动能的定义课件展示：具有动能的事例，让学生分析共同点是，引入动能的定义学生思考，分析培 养 学生 的分析能力文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL

3、3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M

4、8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL

5、3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M

6、8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL

7、3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M

8、8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL

9、3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3名师精编优秀教案（2）探究：影响动能大小的因素学生阅读一铁路职工“中弹”昏倒和火车“吻”肥猪，吻死一大片的材料，做出猜想让学生分组讨论并设计实验方案，提示学生要注意采取什么研究方法，怎么比较动能的大小。巡视指导。引发学生对探究结果进行描述，适时激励。（3）阅读“小资料”，让学生讨论问题思 考 并猜 测 其 影响因素选择仪器，利用合理的 方 法设 计 实 验方案学生分组实验，正确记录实验数据，并完成实验报告交流，分析，评估交流，发表自己的见解从 生 活

10、中 的现象入手，培养兴趣避 免 盲目 操作 产 生消 极心理组 内 角色 分工要明确从 物 理走 向生活，培养学生 分 析实 际问题的能力3、重力势能（1）重力势能的定义课件展示图片：地面上的大石头和高山上的大石头，让学生体会感觉，引入重力势能的定义（2）探究：影响重力势能大小的因素学 生 从生 活 经 验中体 会 到被 举 高 的物体具有能量。从 生 活走 向物理文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6

11、Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3

12、 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6

13、Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3

14、 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6

15、Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3

16、 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6

17、Z5T3名师精编优秀教案课件展示：木锤和打桩机的重锤，引导学生猜想影响重力势能大小的因素。让学生利用身边的小物品设计实验，要注意采取什么研究方法，怎么比较重力势能的大小。巡视指导。引发学生对探究结果进行描述，适时激励。（3）让学生阅读高空坠物再次敲响警钟的报导，提高学生的安全意识让 学 生体 会 到 重力势能有大小之分，并做出猜想选择仪器，利用合理的 方 法设 计 实 验方案学生分组实验，正确记录实验数据，并完成实验报告交流，分析，评估学生阅读组 内 角色 分工要明确培 养 学生 实验探究能力。让 学 生养 成与人共处、协作 学 习的 习惯。从 物 理走 向生活.弹性势能让学生阅读教材，找出弹

18、性势能的定义，用课件展示几个具有弹性势能的例子。学生阅读，思考培 养 学生 的自学能力三、课堂小结由学生畅谈本节课的收获。相互间交流、补充。培 养 学生 对所 学 知识 反思的意识四、巩固练习分析，解答巩 固 所学 知识文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 Z

19、W3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1

20、B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 Z

21、W3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1

22、B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 Z

23、W3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1

24、B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3名师精编优秀教案附：巩固练习1.下列物体具有何种形式的机械能:升空的火箭:;正在下落的雨滴:;被拉长的橡皮筋:.2.一架飞机在灾区上方水平匀

25、速飞行，并不断向灾区空投救灾物资，则飞机在这个过程中，动能_，势能_。(填“变大”或“变小”)3.唐诗中有“不尽长江滚滚来”的诗句，这动人的诗句生动、形象地反映了这条大河蕴藏了大量的能.4.物体沿斜面匀速下滑，物体的()A动能增加，势能减小B动能、势能都减小C动能不变，势能减小D动能、势能都增加5、在研究物体的重力势能与哪些因素有关的实验中,让三个相同的木桩被从空中静止释放的铁块撞击,陷入沙坑中,如图所示,在此实验中,我们是通过观察来比较各铁块重力势能的大小?若 A、B 两铁块质量相等，则两铁块下落高度的关系是hAhB,若 A、C 两铁块下落的高度相等，则两铁文档编码:CL3J1B1D6L3

26、HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z

27、5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3

28、HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z

29、5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3

30、HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z

31、5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3

32、HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3名师精编优秀教案块质量的关系是 mAmC.实验得出的结论是：物体重力势能的大小与有关。6.下表中给出了一头牛慢步行走和一颗飞行的子弹的一些数据：物体质量m(Kg)速度 v(m/s)动能Ek(J)牛约 600 约 0.5 约 75 子弹约 0.02 约 700 约 5103 分 析 数 据,可 以 看 出,对 物 体 动 能 大 小 影 响 较 大 的 因 素是。你这样判断的依据是。文档编码:

33、CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J

34、4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:

35、CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J

36、4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:

37、CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J

38、4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3文档编码:CL3J1B1D6L3 HQ9G3V8J4M8 ZW3S5D6Z5T3