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液压技术是液体压强的应用,它是帕斯卡原理在生产生活中的具体体现。液压系统具有工作平稳,无噪声,机动灵活等特点。由此,人们发明了大量的液压机械,其中各种液压机和千斤顶是我们常见的液压机械。由于液压机械广泛地应用于我们的生产和生活中,因此,在初中物理中专门介绍了液压技术的应用。但在教学实践中我发现,教师和学生没有合适的仪器进行探究液压技术的实验,因此教师只能照书本讲解,学生看书死记硬背。为解决这一问题,我们利用生产和生活中的一些废弃材料,制成了小巧玲珑,结构简单,用水传递压强,全透明的液压机模型。
Hydraulic technology is the application of liquid pressure, it is a concrete manifestation of Pascal’s principle in the production of life. Hydraulic system has a stable, noise-free, flexible and so on. As a result, people invented a large number of hydraulic machinery, hydraulic and jacking which is our common hydraulic machinery. As the hydraulic machinery is widely used in our production and life, therefore, junior high school physics specifically introduced the application of hydraulic technology. However, in teaching practice, I found that teachers and students do not have suitable instruments to explore the hydraulic technology experiment, so the teacher can only explain according to the book, students reading rote. To solve this problem, we use some of the waste materials in production and life to make the hydraulic machine model with small size, simple structure, water transfer pressure and full transparency.