内容正文:
第十五章 电流和电路
第1节 两种电荷
R·九年级
各位专家好,我汇报的项目是永磁直驱带式输送系统功耗模型及其应用基础研究,我是项目负责人王桂梅。
1
目 录
Contents
1. 新课引入
2. 两种电荷
3. 原子及其结构
3. 导体和绝缘体
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我将从以下4个部分进行汇报。
2
1. 立项背景
1. 新课引入
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优秀PPT下载:www.1ppt.com/xiazai/ PPT教程: www.1ppt.com/powerpoint/
Word教程: www.1ppt.com/word/ Excel教程:www.1ppt.com/excel/
资料下载:www.1ppt.com/ziliao/ PPT课件下载:www.1ppt.com/kejian/
范文下载:www.1ppt.com/fanwen/ 试卷下载:www.1ppt.com/shiti/
教案下载:www.1ppt.com/jiaoan/
字体下载:www.1ppt.com/ziti/
3
1. 新课引入
用摩擦的方法使物体带电,叫做摩擦起电。
带电物体可以吸引轻小物体或者水流
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节日PPT模板:www.1ppt.com/jieri/ PPT素材下载:www.1ppt.com/sucai/
PPT背景图片:www.1ppt.com/beijing/ PPT图表下载:www.1ppt.com/tubiao/
优秀PPT下载:www.1ppt.com/xiazai/ PPT教程: www.1ppt.com/powerpoint/
Word教程: www.1ppt.com/word/ Excel教程:www.1ppt.com/excel/
资料下载:www.1ppt.com/ziliao/ PPT课件下载:www.1ppt.com/kejian/
范文下载:www.1ppt.com/fanwen/ 试卷下载:www.1ppt.com/shiti/
教案下载:www.1ppt.com/jiaoan/
字体下载:www.1ppt.com/ziti/
通过摩擦的方式使物体带上电荷
4
1. 立项背景
2.两种电荷
1.自然界只有两种电荷
规定:用丝绸摩擦过的玻璃棒带的电荷叫做正电荷;
用毛皮摩擦过的橡胶棒带的电荷叫做负电荷。
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