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为增加青少年科技知识、培养青少年科技竞争意识,提高动手动脑能力,北京市丰台区东高地青少年科技馆在夏令营、冬令营及课余科技活动中开展了模拟火箭飞行原理,制作并发射表演小火箭(在此称其为水箭)的活动,受到广大青少年的欢迎。现在这里介绍给大家,供开展此项活动时参考(本项活动适宜于中学生及小学高年级学生)。 水箭的构思原理:大家对我国自行研制的运载火箭点火升空的景象恐怕都不陌生吧。火箭飞行原理是遵循物理学的动量守恒定律,也就是说,火箭燃料燃烧时的动量与火箭箭体自身的动量,它们两者动量值大小相等,方向相反。如同人们在划船时,划动的双桨给水一个作用力,水则给船一个反作用力,
In order to increase the scientific and technological knowledge of young people, cultivate the sense of science and technology competition among young people and enhance the ability of hands-on brain training, the Dong Gaoda Youth Science and Technology Museum of Fengtai District of Beijing conducted simulated rocket flight principles in summer camps, winter camps and extra-curricular science and technology activities, Here called water arrows) activities, welcomed by the majority of young people. This article is for reference now. (This activity is suitable for high school students and primary school students). Water Arrow idea of the concept: We all developed on our own launch vehicle launch launcher I am afraid that the scene is not unfamiliar with it. Rocket flight principle is to follow the law of conservation of momentum of physics, that is, rocket fuel combustion momentum and rocket body’s own momentum, both of them the same magnitude of momentum, the opposite direction. As people boating, paddle paddling a force of water, the water gives the ship a reaction force,