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笔者在调研中发现,多数高中理科生对生活中司空见惯的基于墙角的杆模型问题始终无法深入理解。中学物理课程标准要求物理教学应从学生已有的经验出发,让他们在熟悉的生活情境中感受物理的重要性,了解物理与日常生活的密切关系,逐步学会分析和解决与物理有关的一些简单的实际问题。本文就逐层解开墙角模型中杆运动问题的神秘面纱,供大家赏析。一、滑动速度问题问题1如图1所示,长度为l的刚性直杆AB
The author found in the survey, most high school science students life-based corner-based model of the pole model has always been in-depth understanding. Secondary school physics curriculum standards require physical teaching should start from the students already experience, let them feel the physical importance of the familiar life situations, understand the close relationship between physics and daily life, and gradually learn to analyze and solve the physical and some simple Practical problems. This article will unlock the mystery of the pole motion problem in the corner model layer by layer, for your appreciation. First, the problem of sliding speed problem 1 shown in Figure 1, the length of the rigid straight rod l AB