学习物理的目的之一是为了将学到的物理知识用来认识自然和改造自然,因此在中学物理学习过程中,联系实际学习物理知识,不仅是学习物理的基本方法,也是培养学生综合能力的重要途径,洗衣机作为人们从繁杂的家务劳动中解放出来的好助手,愈来愈受到消费者的喜爱,它集中了大量的力·电·光等物理知识,是现代科技的结晶。下面几例就是和洗衣机相联系几个物理问题。一、和新型洗衣机发展方向相联系的物理问题例1 2002年初,伊莱克斯公司首次向世人展示成型的、不用洗涤剂的离子洗衣技术,带来了一场洗涤革命。传统洗衣机洗涤衣物,靠的是洗涤剂中的活性剂;而离子洗衣机则通过在洗衣机内部安装特殊的活水装置(离子水发生器),把普通自来水分解为离子水,通过离子水的高渗透性及离子独有的对污渍、灰尘的分解作用和吸附作用,达到对衣物的清洁。离子水的全称是强氧化性活性离子水,不仅 One of the purposes of learning physics is to use the learned physical knowledge to understand nature and transform nature. Therefore, in the middle school physics learning process, tangling physical knowledge with physical learning is not only the basic method of learning physics, but also the cultivation of students’ comprehensive ability. As an important approach, washing machines, as a good helper for people to liberate themselves from complicated housework, are becoming more and more popular with consumers. They have concentrated a great deal of physical knowledge such as power, electricity, and light, and are the crystallization of modern science and technology. Here are a few examples of physical problems associated with washing machines. First, the physical problems associated with the development direction of the new washing machine Example 1 In early 2002, Electrolux showed the world for the first time that the ionized laundry technology that was formed without detergents brought a washing revolution. Traditional washing machines wash clothes by active agents in detergents; while ion washing machines use special running water devices (ionized water generators) inside the washing machine to decompose ordinary tap water into ionized water, which has high permeability through ionized water. And the unique ion of the stain, dust decomposition and adsorption, to achieve the cleanliness of clothing. The full name of ionized water is strong oxidizing reactive ionized water, not only