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初中物理光学作图部分是光学知识的一个重点,也是一个难点。学生学好了光学作图,对光学知识的掌握就会更透彻、更牢靠。而且通过作图训练,不仅能培养学生基本的作图技能,还能培养学生的思维能力、设计能力和创新意识。如何正确地做好光学作图呢?下面我通过典型的例题,介绍一下初中物理基本的光学作图类型。一、光的直线传播作图涉及知识:光在同种均匀介质中沿直线传播。例1.作出发光体AB在小孔后所成的像。
The physical optical drawing section of junior middle school is a focal point of optical knowledge, and it is also a difficult point. Students learn optical drawing and master the knowledge of optics more thoroughly and securely. And through mapping training, not only can students develop basic graphics skills, but also develop students’ thinking ability, design ability and sense of innovation. How to do a good job of optical mapping? Here I use typical examples to introduce the basic type of optical mapping of junior high school physics. First, the linear propagation of light involves knowledge: Light travels in straight lines in the same homogeneous medium. Example 1. An image of the light emitter AB after the small hole was made.