做水火箭需要的材料和过程?
要详细点,最好附上图。
推荐回答(5个)
做水火箭需要用到废弃的饮料瓶、水、打气筒、自行车气嘴、卡纸、双面胶、直尺、剪刀、橡胶塞。
制作方法如下:
1.剪一块20*30厘米的卡纸,用卡纸包裹饮料瓶身;
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2Fd4628535e5dde7118ff4282eabefce1b9c1661c7%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
2.再裁剪一个锥形纸筒,粘贴到外面,模拟火箭的箭头;
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2Fc8ea15ce36d3d5394631641b3687e950342ab0de%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
3.剪下一部分的卡纸,在一面粘上双面胶,并对折粘贴;
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F54fbb2fb43166d2281437e4c4a2309f79052d236%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
4.用直尺沿着对着好的卡纸画两条平行的线;
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F58ee3d6d55fbb2fb8f1f33ca434a20a44623dc36%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
5.沿线用剪刀剪去不要的部分,模拟火箭的机翼。用同样的方法再做两个机翼;
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F5ab5c9ea15ce36d33a08e8e836f33a87e850b1de%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
6.把自行车气嘴塞到有孔橡胶塞里,模拟火箭发射器;
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F35a85edf8db1cb137c5e57cbd154564e92584b36%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
7.把橡胶塞塞到饮料瓶口,简易的水火箭就做好了;
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2Fdbb44aed2e738bd41415d9e9ad8b87d6277ff936%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
8.发射前先往饮料瓶内注入四分之一的水;
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F09fa513d269759eef4640b13befb43166d22df36%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
9.在室外空旷的地方放上支架台。把饮料瓶倒扣在支架台上,用气筒夹住自行车气嘴,向饮料瓶内打气。等到气体充足时,水火箭就会发射出去。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2Fa5c27d1ed21b0ef471cef386d1c451da80cb3ec7%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
拓展资料:
水火箭又称气压式喷水火箭、水推进火箭。是利用废弃的饮料瓶制作成动力舱、箭体、箭头、尾翼、降落伞。灌入一定数量的水,利用打气筒充入空气到达一定的压力后发射。是利用水和空气的质量之比(水的密度是空气的771倍),压力空气把水从火箭尾部的喷嘴向下高速喷出,在反作用下,水火箭快速上升,加速度、惯性滑翔在空中飞行,像导弹一样有一个飞行轨迹,最后达到一定高度,在空中打开降落伞徐徐降落的火箭模型。
材料:橡胶头、空水瓶、纸板、弹性橡胶盖、塑料电工安装板、螺丝、打气筒。
步骤:
1.火箭的头部:用有弹性的橡胶做头部,在落地时能吸收冲击力,起到缓冲的作用,可保护水火箭的安全:
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F50da81cb39dbb6fd256b8e9e0f24ab18972b3751%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
2.平衡仓:水火箭本体的上部,也就是火箭的本体,不能进水和空气:
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F6a600c338744ebf8fd420f87dff9d72a6059a753%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
3.压力仓:火箭的本体,从火箭下部的开口注入水和空气,使火箭内部增压。因压力会逐步增强,所以需固定牢实。
4.火箭翼:由于水火箭要像真正火箭一样向前飞行,所以机翼是必不可少的。务必使用稍硬的材料(纸板)并粘牢。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F38dbb6fd5266d0167074f590912bd40735fa351c%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
5.喷射口:压力仓中的水和空气从这里急剧喷出,从而成为水火箭飞行的动力。用弹性橡胶盖效果较好:
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2Fb64543a98226cffc8243d40abf014a90f603ea19%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
6.发射台:压力仓注入水、充入空气后,连接部下沉。锁打开,将水火箭发射出。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F8718367adab44aed82d8d65cb51c8701a08bfbf0%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
水火箭又称气压式喷水火箭、水推进火箭。是利用废弃的饮料瓶制作成动力舱、箭体、箭头、尾翼、降落伞。灌入一定数量的水,利用打气筒充入空气到达一定的压力后发射。是利用水和空气的质量之比(水的质量是空气的816倍),压力空气把水从火箭尾部的喷嘴向下高速喷出,在反作用下,水火箭快速上升,加速度、惯性滑翔在空中飞行,像导弹一样有一个飞行轨迹,最后达到一定高度,在空中打开降落伞徐徐降落的火箭模型。 水火箭是寓教于乐、不用花钱、科技含量高,深受广大青少年喜爱的动手、动脑的科普教材。可以让学生直观了解导弹,运载火箭的发射升空,回收的过程,导弹的飞行与飞机的飞行原理及不同点。解释牛顿第一、第二、第三定律(作用与反作用、惯性、能量守恒定律)了解一些基本的空气动力学和飞行力学等方面知识。使广大青少年了解航天科技,热爱航天科技,为国家航天事业培养、造就、输送优秀人才。 发射原理 用橡皮塞塞紧的可乐瓶,形成一个密闭的空间.把气体打入密闭的容器内,使得容器内空气的气压增大,当超过橡皮塞与瓶口接合的最大程度时,瓶口与橡皮塞自由脱离,箭内水向后喷出,获得反作用力射出. 水火箭的制作 1.材料准备:3~6个2.25L的可乐瓶、剪刀、单面刀片、木塞、球类气针、圆珠笔芯、订书机、双面胶、彩色装饰纸. 2.制作过程:如图1,取出其中一个可乐瓶,大约以1/3的间距切成三等份.如图2,留下瓶口及中段部分,将第二个可乐瓶倒过来.如图3,将第一个的瓶口盖在第二个可乐瓶的瓶底,再将第一个的中段瓶身盖在第二个可乐瓶的瓶口.盖上后,用双面胶粘紧.再找出一个硬纸板,剪出平衡翼,平衡翼的数量为4个.太大的平衡翼很重,太小的起不了平衡作用. 3.制作重点:在制作过程中,喷口是最为重要的,密封一定要好,否则不能提供良好的压力.气针在木塞中,也要达到密不透水,最好用烧红的针尖穿洞。如果还有漏水情况,可以在气针上加装一个圆珠笔芯,圆珠笔芯的顶端伸出水面,可防止打气时气泡的翻滚和漏水情况。
制作水火箭的视频:手把手教你制作方法,利用水压作动力飞上天
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