Student Understanding of The First Law of Thermodynamics
Student Understanding of The First Law of Thermodynamics
复制标题
学生对热力学第一定律的理解
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
Michael E. Loverude
中科院分区：
文献类型：
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作者：
Michael E. Loverude
我们报告了一项关于学生对热力学第一定律理解的调查。参与的学生来自大学一年级物理课程和二年级热物理课程。重点是学生将第一定律与理想气体的绝热压缩联系起来的能力。尽管他们学习了第一定律，但很少有学生认识到它的相关性。很少有人能够应用功的概念来解释绝热过程中的温度变化。相反，大多数学生的预测和解释都是基于对理想气体定律的误解。即使提出了能量和功的概念，许多学生也无法给出正确的分析。他们经常无法区分热、温度、功和内能的概念。学生在热过程中应用功概念时遇到的一些困难似乎与力学困难有关。我们的研究结果还表明...
We report on an investigation of student understanding of the first law of thermodynamics. The students involved were drawn from first-year university physics courses and a second-year thermal physics course. The emphasis was on the ability of the students to relate the first law to the adiabatic compression of an ideal gas. Although they had studied the first law, few students recognized its relevance. Fewer still were able to apply the concept of work to account for a change in temperature in an adiabatic process. Instead most of the students based their predictions and explanations on a misinterpretation of the ideal gas law. Even when ideas of energy and work were suggested, many students were unable to give a correct analysis. They frequently failed to differentiate the concepts of heat, temperature, work, and internal energy. Some of the difficulties that students had in applying the concept of work in a thermal process seemed to be related to difficulties with mechanics. Our findings also suggest t...