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悬浮实验分析与改进.doc

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悬浮实验分析与改进.doc

上传人:sanshenglu2 2021/1/24 文件大小:383 KB

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文档介绍:悬浮实验的分析与改进
摘 要:浮力是八年级物理第十章的重要内容,其中对上浮、下沉、漂浮以及悬浮等现象的分析是教学必不可少的过程。教学中的上浮、下沉和漂浮都很容易通过实验显现,但是悬浮实验却是很难实现。因此,很多物理老师在讲悬浮时不做实验只是从理论上进行推导,使学生觉得枯燥乏味。看到这一情况也有很多老师为了在课堂上吸引学生注意力、提高学生学****兴趣,他们想办法在课堂上将悬浮实验显现在学生面前。本文作者研究了多个老师的悬浮实验,分析了各个实验的优缺点,在此基础上改进了悬浮实验的调节方法。本文将对改进后的双向调节法、针对此方法制作的悬浮子以及改进后实验的具体操作过程进行阐述。
关键词:浮力   重力    悬浮实验 黏性阻力 双向调节
The analysis and improvement of the suspension
Abstract: Buoyancy is the important content of the chapter 10 of the eighth grade physical.In this chapter, the analysis about the phenomenon of rising, sinking, floating and suspending is essential to the teaching process.though ,it is easy to be observed through the experiment that something rise sink or float on some liquid,The phenomenon of suspension was difficult to be wahched.Therefore, many of the physics teacher just theoretically derived instead of operating the experiments, which always make the students feel boring. To solve this problem,some teachers attempted to present the real phenomenon of suspension to their students in many ways,only by doing so,can the students pay their attention to the teacher。
The author investigated many suspension experiments operated by teachers ,analyzed the advantages and disadvantages of each experiment to improve the regulation method of the  paper will expound the method of two-way rgulating, the suspension son maked by this method as well as the specific operation process of the improving experiment.
Keywords:  Buoyancy  gravity   Suspended experiment Stickiness obstruction Tow—way Regulating
目录
1 绪论 ———-————--———-—————-3
2 悬浮实验的方案与分析 ——-——————-———--3
ﻩ2。1悬浮实验的几种实验方案—------—------—-—------—-- 3
2。2对悬浮实验方案的分析----—--—------—--—----——--—- 5
3对悬浮实验的研究———-————--——-—-6
-——----—-—-—--—--—---——-———-—6
3。2悬浮实验平衡的调整分析-————-—-----—-—-——------—
--7
4实验设计与材料选取———-————————-—8
4.1双向调节法———--——-—-—————-----—---—-——-----—---- 8
ﻩ4.2液体的选择—-------—--—-—-—-------——--—-------—-— 8
4.3悬浮子的选择与制作---—-----—-—----——-

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