论文部分内容阅读
控制变量法是初中物理科学探究过程中用得最多的方法之一,在每年的中考试题中都会出现对控制变量法的考查,而考查的方法形式多样,除了考查学生在实验设计过程中是否有控制变量法的思想外,还考查学生分析评价控制变量法的能力。本文要和大家一起探讨的是如果存在两个变量,是否也能进行探究的特殊情况。原题部分内容:物体在气体或液体中运动时,受到阻碍物体运动的力称为流体阻力,这种阻力的大小与哪些因素
The control variable method is one of the most used methods in junior high school physics inquiry process. Every year in the middle school exam questions, there will be a test of the control variable method. However, there are many ways of examining the students except for the students in the experimental design process Control the idea of variable law, but also examine the ability of students to analyze and evaluate control variables. This article should be discussed with everyone is if there are two variables, whether or not to explore the special case. Part of the original title: Objects in the gas or liquid movement, by obstructing the movement of objects called fluid resistance force, the size of such resistance and what factors