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在小学阶段,学生掌握的光学知识已经比较多了,比如光沿直线传播、光的反射、折射、凸透镜、凹透镜等。但是这些知识看起来枯燥乏味,怎样让学生在玩中学呢?笔者给大家带来两个有趣的光学小实验,如果将其应用到课堂上,相信会有不错的效果。一、会拐弯的激光1.实验材料。激光灯、透明的饮料瓶、水。2.实验过程。(1)在透明饮料瓶的瓶壁上用锥子扎一个小孔。(2)堵住小孔,往饮料瓶里加满水。
In elementary school, students have more optical knowledge, such as light along a straight line, light reflection, refraction, convex lens, concave lens and so on. However, this knowledge seems boring, how to make students play secondary school? I bring you two interesting optical experiments, if applied to the classroom, I believe there will be good results. First, the turning laser 1. Experimental materials. Laser light, transparent beverage bottle, water. 2. Experimental process. (1) tie a hole in the bottle wall of the transparent beverage bottle with an awl. (2) plug the hole, fill the bottle with water.