论文部分内容阅读
初中《物理》第二册第 2 1面关于热量和比热大小的描述是 :“单位质量的某种物质温度降低 1℃放出的热量和它温度升高 1℃吸收的热量相等 ,也等于它的比热”.笔者认为此解释欠妥 ,下面以笔者在教学中遇到的一个问题为例 ,与同仁商榷 .下面是笔者在课堂上布置给学生的一道判断题
The description of the magnitude of heat and specific heat on the 21st side of the second book of the “Physics” of junior middle school is: “The reduction in the temperature of a substance of unit mass is 1°C. The heat released is the same as the heat absorbed by 1°C of its temperature increase, and it is equal to it. “The specific heat.” The author believes that this explanation is not right. The following is an example of the problems encountered by the author in teaching. Discuss with my colleagues. The following is a question that the author has arranged for students in the classroom.