当学生在物理课程中学习过压力、压强、液压的传递等知识后,引导学生利用废旧材料制作压力式抽水机模型,可以提高学生学习物理的兴趣.下面介绍模型的制作过程.1材料的准备大饮料瓶3个、50mL一次性注射器1个、一次性输液管3套、木板1块、502快干胶1只、自行车滚珠2颗、透明胶1圈 When students learn the pressure, pressure, hydraulic transmission and other knowledge in the physics curriculum, guide students to use the waste materials to produce the pressure type pump model, which can improve the students’ interest in learning physics. The following describes the process of model making.1 The material preparation is large. 3 beverage bottles, 50 disposable syringes, 3 disposable infusion tubes, 1 wooden board, 502 quick-drying glue, 2 bicycle balls, 1 transparent plastic