初三上学期物理内能热量教学计划
今天小编在这给大家整理了初三上学期物理内能热量教学计划,本文共13篇,我们一起来看看吧! 初三上学期物理内能热量教学计划 一、引入新课: 1、物体是否具有动能、势能,我们是如何判断的? 结论:机械能的存在可以凭肉眼判断,即它是一种外部形式的能量。 2、一杯开水可以烫伤人体,说明它具有能量,就像各种燃料燃烧时产生热一样,这种能量的存在,你可以凭肉眼看到吗? 结论:一般凭肉眼是不能判断的,但可以通过其
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