论文部分内容阅读
教材分析:《光的反射》是初中物理光学部分的重要内容,反射规律又是八年级物理知识的重点。本节课既是学习平面镜知识的原理,又是进一步学习光的折射现象的基础,是集物理现象、概念、规律于一体的内容。教学目标:1.知识与技能:了解光在一些物体表面可以发生反射。认识光反射的规律,了解法线、入射角、反射角和反射角的含义。理解反射现象中光路的可逆性。了解什么是镜面反射,什么是漫反射。
Textbook analysis: “light reflection” is an important part of junior high school physics optics, reflection law is the focus of the eighth grade physics knowledge. This lesson is not only the principle of learning the knowledge of plane mirror, but also the basis for further studying the phenomenon of refraction of light. It is a collection of physical phenomena, concepts and laws in one. Teaching Objectives: 1. Knowledge and Skills: Understanding light can reflect on some surfaces. Understand the law of light reflection, to understand the normal, incident angle, reflection angle and reflection angle. Understand the reversibility of the light path in reflection. Understand what is specular and what is diffuse.