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  • 制作太陽能儲蓄罐

    2018-02-09作者:龔心燁推薦訪問:日記 小學生作文
    星期三,陽光明媚。我們興高采烈地乘著巴士來到了科藝中心。

    等我們都坐在自己位置上時,安靜下來時,老師拿來了許多樣奇形怪狀的東西。我們面面相覷,不知道老師葫蘆里買的什么藥?只見老師將道具發給了我們,并說道:“今天我們來做太陽能儲存罐。先將驅動芯片,也就是戴著一頂黑帽子的,有四只腳的物品。用鉗子調整到與組合電板上對應的插腳一致,然后插入到組合電板相應的位置上。在安裝中間有個紅球的整流二極管,切記,紅色的那一頭是正極,黑色的那一頭是負極。”我聽了連忙手忙腳亂的做了起來。剛做好,老師又開始教下來的了。“現在安裝色環電感,就是那個綠色的,這個綠色的沒有正負極。不過,要剪下三分之一,再插入插腳中。接著安裝容量為220uF的電容,長腳為正極,短腳為負極。”可當我做好第一步時,忘了后一步該怎么做了。我急得抓耳撓腮,像熱鍋上的螞蟻一樣,不知道該怎么辦才好。這時,同桌張賢璟向我伸出了援助之手。接下來,我們又互幫互助完成了變色LED、電容10uF和滾珠開關。最后,我們裝上了電池,剎那間,閃出了絢麗的光彩:一會是藍,一會是綠,一會是黃,好看極了。突然,老師說:“還有一步呢!別玩了!”我不禁疑惑起來,還要做什么呢?哦!原來是要放進罐子里。當做好這一切時,一位同學問道:“老師,這個該怎樣充電呢?”“這個啊!不用充電,只要放在陽光底下就OK了!”老師回答道。“真是太方便了!”

    實驗結束了,我們依依不舍的回到了教室。科藝中心,期待下一次與你的見面。

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