通过对初二学生的调查,发现初二学生上学期普遍感觉学习物理很轻松、很有趣.但是一到下学期,特别是学习力学知识后,一部分学生就开始觉得力不从心了,感觉只有一个字“难”.这种现象的产生的原因是多方面的.首先,教材的编写总是由简到难的,所以,客观上讲初二下学期的物理知识理应比上学期要难;其次,初二上学期主要学习的是一些物理现象,这 Through the investigation of the first two students, I found it very easy and interesting for the first two students to feel the learning physics last semester, but as soon as the next semester, especially after learning mechanics, some of the students started to feel powerless and felt that there was only one word “Difficult.” This phenomenon occurs for many reasons.First of all, the preparation of textbooks is always simple to difficult, so objectively speaking, the second semester physics knowledge should be more difficult than last semester; secondly The first two semesters of the main learning is some of the physical phenomena, this