拉伸法测量弹性模量实验问题探讨

Studying Two Questions in Experiment of Measuring Elastic Modulus by Stretching Method

针对拉伸法测钢丝弹性模量“光杠杆放大法的角度关系”和“快速调节望远镜观察刻度尺的像”实验教学中容易出现的两个问题进行研究，提出了教学改进方法．

This paper elaborates and explains two questions that exist in the experiment item of measuring e- lastic modulus by stretching method, which include angle relation in light lever magnifying method and adjusting telescope quickly to observe image of scale ruler.