凸透镜在生活中的应用非常广泛,历年来各类考试都侧重考查同学们进行实验探究凸透镜成像规律和应用凸透镜成像规律解决实际问题的能力.下面就通过实验对凸透镜成像规律进行探究.提出问题:凸透镜所成像的大小、正倒跟物体的位置有什么关系?猜想与假设:可能与物距有关,当物距大时,成缩小的像:当物距小时,成放大的像.实验器材:凸透镜一个(f=10 cm)、光具座、蜡烛、光屏、火柴.设计并进行实验:1,如图1所示,将蜡烛、凸透镜、光屏依 Convex lens in the life of a wide range of applications, all kinds of exams over the years have focused on examining students to explore the law of convex lens imaging and the application of convex lens imaging law to solve practical problems.The following is an experiment to explore the law of imaging of convex lens.Proposed the question: Convex lens imaging of the size, upside down with the object’s position What is the relationship? Conjecture and Assumption: May be related to the object distance, when the object distance is large, into a reduced image: When the object distance is small, into an enlarged image Experimental equipment: A convex lens (f = 10 cm), optical bench, candle, light screen, matches Design and experiment: 1, as shown in Figure 1, the candles, convex lens,