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付新建 2020-11-15 19:26

<p>微元法是一个很好的解题方法,在物理学中有很多地方可以用微元法求解。</p>

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宋海涛 2020-11-03 16:46

<p class="pl_nr" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; line-height: 24px; font-size: 12px; color: rgb(51, 51, 51); font-family: 微软雅黑; white-space: normal; background-color: rgb(255, 255, 255); overflow-wrap: break-word;"><br/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; line-height: 26px;"><span style="margin: 0px; padding: 0px; border: 0px; display: inline-block; color: rgb(51, 51, 51); font-family: 宋体; font-size: 16px; text-indent: 32px; background-color: rgb(255, 255, 255);">微元法是解决物理问题的基本思想方法,</span><span style="margin: 0px; padding: 0px; border: 0px; display: inline-block; color: rgb(51, 51, 51); font-family: 宋体; font-size: 16px; text-indent: 32px; background-color: rgb(255, 255, 255);">可准确地描述变化的物理过程,更是解决物理过程中变量积累问题的重要方法。</span></p><p><span style="margin: 0px; padding: 0px; border: 0px; display: inline-block; color: rgb(51, 51, 51); font-family: 宋体; font-size: 16px; text-indent: 32px; background-color: rgb(255, 255, 255);"><br/></span></p><p><br/></p><p><br/></p>

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刘丹 2020-10-30 08:36

<p><span style="color: rgb(51, 51, 51); font-family: 宋体; font-size: 16px; text-indent: 32px; background-color: rgb(255, 255, 255);">微元法是高等数学的支撑,但确是解决物理问题的基本思想方法,它贯穿于高中阶段的物理知识体系,渗透于一些物理概念、公式中。比如在讲匀变速直线运动里的位移时间关系时,速度时间图像面积表示位移,推到公式时取微元作为研究对象,可准确地描述变化的物理过程中瞬间状态,微元再求和更是解决物理过程中变量积累问题的重要方法。</span></p>

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游丹丹 2020-10-21 11:19

<p><span style="color: rgb(51, 51, 51); font-family: 宋体; font-size: 16px; text-indent: 32px; background-color: rgb(255, 255, 255);">元法是解决物理问题的基本思想方法,</span><span style="color: rgb(51, 51, 51); font-family: 宋体; font-size: 16px; text-indent: 32px; background-color: rgb(255, 255, 255);">可准确地描述变化的物理过程中瞬间状态,微元再求和更是解决物理过程中变量积累问题的重要方法。</span></p>

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王树林 2020-10-16 18:17

<p>变力做功问题可用微元法,如摩擦力做功</p>

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王青林 2020-10-16 15:33

<p>微元法是高等数学支撑,高中时是思想的应用</p>

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陈登科 2020-10-16 10:48

<p>匀变速直线运动公式的推导&nbsp; 变力做功可以用微元法</p>

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李进伟 2020-10-13 19:01

<p><span style="margin: 0px; padding: 0px; border: 0px; display: inline-block; color: rgb(51, 51, 51); font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);">在使用微元法处理问题时,需将其分解为众多微小的“元过程”,而且每个“元过程”所遵循的规律是相同的,这样,我们只需分析这些“元过程”,然后再将“元过程”进行整体考虑。</span></p>

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田金生 2020-09-25 10:53

<p style="margin: 0cm 0cm 0pt; padding: 0px; border: 0px; line-height: 26px; color: rgb(51, 51, 51); font-family: 微软雅黑; font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); text-indent: 24pt;"><span style="margin: 0px; padding: 0px; border: 0px; display: inline-block; font-family: 宋体; font-size: 12pt;">微元法是解决物理问题的基本思想方法,它贯穿于高中阶段的物理知识体系,渗透于一些物理概念、公式中。取微元作为研究对象,可准确地描述变化的物理过程中瞬间状态,微元再求和更是解决物理过程中变量积累问题的重要方法。</span></p><p><br/></p>

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翟翠颖 2020-09-16 20:58

<p><font face="宋体" size="3"></font></p><p style="margin: 0cm 0cm 0pt; text-indent: 24pt; mso-char-indent-count: 2.0;"><span style="font-family: 宋体; font-size: 12pt; mso-fareast-font-family: 宋体; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;">微元法,就是将研究对象(物体或物理过程)进行无限细分,从其中选取某一微小单元进行分析和讨论,从而找出研究对象(物体或物理过程)变化规律的一种解题方法。微元法是解决物理问题的基本思想方法,它贯穿于高中阶段的物理知识体系,渗透于一些物理概念、公式中。取微元作为研究对象,可准确地描述变化的物理过程中瞬间状态,微元再求和更是解决物理过程中变量积累问题的</span></p><p><font face="宋体" size="3"></font><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-ascii-theme-font: minor-fareast; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast; mso-bidi-theme-font: minor-bidi; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">重要方法。严格说,微元法是利用微积分来处理物理问题的一种解题思维方法,对中学生来说显得有一定的难度<span>(</span>属于较高要求<span>)</span>。但在教学中恰当地选择一些物理问题,有针对性地进行分析,对培养中学生的思维能力和综合分析能力是有益的。</span></p>

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李俊存 2020-09-16 16:05

<p><span style="margin: 0px; padding: 0px; border: 0px; display: inline-block; background-color: rgb(255, 255, 255);">用</span><span style="margin: 0px; padding: 0px; border: 0px; display: inline-block; color: rgb(51, 51, 51); font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);">微元法分析、解决</span><a href="http://www.so.com/s?q=%E7%89%A9%E7%90%86&ie=utf-8&src=internal_wenda_recommend_textn" target="_blank" style="color: rgb(0, 99, 200); text-decoration-line: none; overflow-wrap: break-word; font-size: 16px; margin: 0px; padding: 0px; outline: none; font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; white-space: pre-wrap; background-color: rgb(255, 255, 255); cursor: pointer;">物理</a>问<span style="margin: 0px; padding: 0px; border: 0px; display: inline-block; color: rgb(51, 51, 51); font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);">题,在高中阶段,教材在瞬时速度与平均速度关系上,在匀变速直线运动位移与时间关系X=V0t+at2/2&nbsp;&nbsp;,应用效果明显&nbsp;&nbsp;。</span></p>

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刘铁林 2020-09-15 08:20

<p style="margin-top:0;margin-right:0;margin-bottom:5px;margin-left:0;text-indent:28px;padding:0 0 0 0 ;line-height:21px"><span style=";font-family:宋体;font-size:14px"><span style="font-family:宋体">微元法是分析、解决物理问题中的常用方法,也是从部分到整体的思维方法。它是将研究对象(物体或物理过程)进行无限细分,从其中抽取某一微小单元即</span>“元过程”,进行讨论,每个“元过程”所遵循的规律是相同的。对这些“元过程”进行必要的数学方法或物理思想处理,进而使问题求解。使用此方法可以把一些复杂的物理过程用我们熟悉的物理规律迅速地加以解决,使所求的问题简单化,从而起到巩固知识、加深认识和提高能力的作用。</span></p><p><br/></p>

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许争光 2020-09-14 07:51

<p><span style="color: rgb(51, 51, 51); font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);"> </span><a href="http://www.so.com/s?q=%E9%AB%98%E4%B8%AD%E7%89%A9%E7%90%86&ie=utf-8&src=internal_wenda_recommend_textn" target="_blank" style="margin: 0px; padding: 0px; outline: none; color: rgb(0, 99, 200); text-decoration-line: none; font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255); cursor: pointer;">高中物理</a><a href="http://www.so.com/s?q=%E6%95%99%E6%9D%90&ie=utf-8&src=internal_wenda_recommend_textn" target="_blank" style="margin: 0px; padding: 0px; outline: none; color: rgb(0, 99, 200); text-decoration-line: none; font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255); cursor: pointer;">教材</a><span style="color: rgb(51, 51, 51); font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);">中速度的求解,</span><a href="http://www.so.com/s?q=%E7%94%B5%E6%B5%81&ie=utf-8&src=internal_wenda_recommend_textn" target="_blank" style="margin: 0px; padding: 0px; outline: none; color: rgb(0, 99, 200); text-decoration-line: none; font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255); cursor: pointer;">电流</a><span style="color: rgb(51, 51, 51); font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);">求解,以及</span><a href="http://www.so.com/s?q=%E5%8A%A0%E9%80%9F%E5%BA%A6&ie=utf-8&src=internal_wenda_recommend_textn" target="_blank" style="margin: 0px; padding: 0px; outline: none; color: rgb(0, 99, 200); text-decoration-line: none; font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255); cursor: pointer;">加速度</a><span style="color: rgb(51, 51, 51); font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);">的求解都用到</span><a href="http://www.so.com/s?q=%E5%BE%AE%E5%85%83%E6%B3%95&ie=utf-8&src=internal_wenda_recommend_textn" target="_blank" style="margin: 0px; padding: 0px; outline: none; color: rgb(0, 99, 200); text-decoration-line: none; font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255); cursor: pointer;">微元法</a><span style="color: rgb(51, 51, 51); font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);">。</span><br/><span style="color: rgb(51, 51, 51); font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);">  微元法是分析、解决</span><a href="http://www.so.com/s?q=%E7%89%A9%E7%90%86&ie=utf-8&src=internal_wenda_recommend_textn" target="_blank" style="margin: 0px; padding: 0px; outline: none; color: rgb(0, 99, 200); text-decoration-line: none; font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255); cursor: pointer;">物理</a><span style="color: rgb(51, 51, 51); font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);">问题中的常用方法,也是从部分到整体的</span><a href="http://www.so.com/s?q=%E6%80%9D%E7%BB%B4%E6%96%B9%E6%B3%95&ie=utf-8&src=internal_wenda_recommend_textn" target="_blank" style="margin: 0px; padding: 0px; outline: none; color: rgb(0, 99, 200); text-decoration-line: none; font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255); cursor: pointer;">思维方法</a><span style="color: rgb(51, 51, 51); font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);">。用该方法可以使一些复杂的物理过程用我们熟悉的物理</span><a href="http://www.so.com/s?q=%E8%A7%84%E5%BE%8B&ie=utf-8&src=internal_wenda_recommend_textn" target="_blank" style="margin: 0px; padding: 0px; outline: none; color: rgb(0, 99, 200); text-decoration-line: none; font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255); cursor: pointer;">规律</a><span style="color: rgb(51, 51, 51); font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);">迅速地加以解决,使所求的问题简单化。在使用微元法处理问题时,需将其分解为众多微小的“元过程”,而且每个“元过程”所遵循的规律是相同的,这样,我们只需分析这些“元过程”,然后再将“元过程”进行必要的</span><a href="http://www.so.com/s?q=%E6%95%B0%E5%AD%A6%E6%96%B9%E6%B3%95&ie=utf-8&src=internal_wenda_recommend_textn" target="_blank" style="margin: 0px; padding: 0px; outline: none; color: rgb(0, 99, 200); text-decoration-line: none; font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255); cursor: pointer;">数学方法</a><span style="color: rgb(51, 51, 51); font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);">或物理思想处理,进而使</span><a href="http://www.so.com/s?q=%E9%97%AE%E9%A2%98%E6%B1%82%E8%A7%A3&ie=utf-8&src=internal_wenda_recommend_textn" target="_blank" style="margin: 0px; padding: 0px; outline: none; color: rgb(0, 99, 200); text-decoration-line: none; font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255); cursor: pointer;">问题求解</a><span style="color: rgb(51, 51, 51); font-family: &quot;PingFang SC&quot;, &quot;Lantinghei SC&quot;, &quot;Microsoft Yahei&quot;, arial, sans-serif; font-size: 16px; white-space: pre-wrap; background-color: rgb(255, 255, 255);">。使用此方法会加强我们对已知规律的再思考,从而引起巩固知识、加深认识和提高能力的作用。</span></p>

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