Solar Cookers in the Physics Classroom
Solar Cookers in the Physics Classroom
复制标题
物理教室的太阳能炊具
DOI：
--
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
B. Lancor
中科院分区：
文献类型：
--
作者：
R. Lancor;B. Lancor
基于项目的学习已被证明是一种有效的教学策略，可以激励学生从而促进学习。在本文中，我们描述了一个以太阳灶物理学为中心的基于项目的单元（图 1 和 3）。我们的目标是将太阳灶从夏令营活动提升为大学水平的项目，可以用来以更有吸引力的方式教授热力学。太阳灶被发展中国家的人们用来替代柴火和危险的煤油炉，这促使学生研究太阳灶的热力学。在本单元中，学生通过设计、建造和测试太阳灶来参与工程设计过程。为此，学生们需要学习了解太阳灶如何吸收和损失能量所必需的物理学知识，包括传热机制、黑体辐射、反射和温室效应。
Project-based learning has been shown to be an effective pedagogical strategy that motivates students and thus promotes learning. In this article we describe a project-based unit centered on the physics of solar cookers (Fig. 1 and 3). Our goal was to elevate the solar cooker from a summer camp activity to a college-level project that could be used to teach thermodynamics in a more engaging way. Solar cookers are used by people in developing countries as an alternative to wood fires and dangerous kerosene stoves, which motivates students to study the thermodynamics of solar cookers. In this unit, students engage in the engineering design process by designing, building, and testing a solar cooker. To do this, the students learn about the physics necessary to understand how the solar cookers absorb and lose energy, including heat transfer mechanisms, blackbody radiation, reflection, and the greenhouse effect.