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物理是一门以观察、实验为基础的科学，物理学中的概念、规律都是通过观察和实验认真地加以总结和抽象概括得出的。人教社九年义务初中物理课本的特点之一：实验多。全书安排演示实验达１００多个，学生分组实验１８个，课外小实验３０个和许多实践性问题。充分体现实验是...
Physics is a science based on observation and experiment. The concepts and laws in physics are summed up and abstractly summarized through observation and experiment. One of the characteristics of the nine-year obligatory junior high school physics textbooks for human-teaching clubs is that there are many experiments. The book arranged for demonstration of more than 100 experiments, students group experiments 18, small extra-curricular experiments 30 and many practical issues. Fully reflect the experiment is ...