物理是一门以实验为基础的学科,所以仔细观察、认真实验是初中生建立物理概念、学习物理规律至关重要的途径之一。教师应利用好身边有限的器材,巧妙地完成多种实验,这样对培养学生创造意识和实践能力大有益处。用喝完可乐的瓶来完成下面这组实验,不但取材容易、简单易做,而且现 Physics is an experiment-based discipline, so careful observation and careful experimentation is one of the crucial ways for junior high school students to establish physical concepts and study physical laws. Teachers should make good use of the limited equipment around them and perform various experiments subtly, which will greatly benefit the students’ ability to create awareness and practice. The following set of experiments was completed with the bottle of Coke. It was not only easy to draw, but also easy to use.