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Water Rocket Contest 2000No description found
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Water Rocket Contest 2000 | ed-contest.hkedcity.net Reviews
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Water Rocket Contest 2000
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Water Rocket Contest 2000
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火箭主體是一個寶特瓶 PET bottle),瓶內先注入一定量的水,再利用氣泵將空氣打進瓶內, 令瓶內形成高壓。 一台簡單的水火箭, 原來已涉及多項物理概念 包括拋物線理論、動量守恆定理及牛頓第三定律,學生透過實踐,更能體會其中一些科學原理。 火箭的長度及闊度不能超越0.4米; 高度不能超越1米。 噴咀其實由一對軟水管轉接器改裝而成,轉接器適用於直徑為0.5英吋(12.7 mm)的水管。 水火箭必須使用大會規定的氣咀,氣咀螺絲外直徑為7.7mm,螺距為0.785 mm。 為增加比賽難度,大會要求每組參賽者的火箭都能運載一個重500毫升的水袋,水袋會以 密實袋 包裝 (密實袋呎吋 16.5cm x 15cm),參賽者可選擇把水袋放置於火箭內或包紮於火箭外圍,但參賽者必須保證水袋內的水份不會在火箭未發射前或在飛行途中爆破,否則參賽者資格將被取消。 發射台 : 發射台由一台三腳架及一支鋼管接合而成,腳架離地面的高度約為60厘米,架上接上一支直徑為1.3厘米 長度為100厘米的圓鋼管。 如有其他查詢,歡迎致電 3123-8203 或電郵致 ed1111@hkedcity.net.
Water Rocket Contest 2000
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Water Rocket Contest 2000
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4 月 6 日 水 動 火 箭 大 賽 2002 得 獎 名 單 及 活 動 花 絮. 循道學校 ( 上午校 ).
Water Rocket Contest 2000
http://ed-contest.hkedcity.net/02_process.html
水動火箭的發射過程 需要有 Real Player Plugin.
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Water Rocket Contest 2000
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