也谈“一牛顿重的水能浮起二牛顿重的物体吗?”

• 作 者: 缪金堂
• 机 构: 江苏海安海南乡中心初中,
• 出 处: 物理教学
• 发表日期: 1989年05期
• 关键词: 阿基米德定律 江苏海安 农村学校 金堂

周广唐、周杏根两同志的“1牛顿重的水能浮起2牛顿重的物体吗?”一文(载《物理教学》1986年第2期29页),充分体现了实验在物理教学中的地位和作用。通过一个小实验使学生能够很信服地承认,1牛顿重的水能够浮起2牛顿重的物体,达到了使学生准确掌握阿基米德定律的目的。本文所要谈的是“1牛顿重的水能浮起2牛顿重的物体”这个问题的普遍性和用两根试管做好这个小实验成功关键的根据。

Zhou Guangtang and Zhou Xinggen’s two comrades’ “1 Newton heavy water can float 2 Newton weight objects?” article (in “Physical Education” 1986, No. 2 29), fully embodies the experiment in physics teaching Status and role. Through a small experiment, the student can convincingly admit that 1 Newton’s weight of water can float 2 Newton’s heavy objects, achieving the purpose of enabling students to accurately grasp Archimedes’s law. What this article is about is the universality of the issue of “1 Newton’s weight of water can float 2 Newton heavy objects” and the key to the successful use of two test tubes to make this small experiment successful.