
三、水溶液(活動3 水溶液的導電性)
Authored by 育碩 胡
Physics
5th Grade

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28 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
有些水溶液容易導電,例如食鹽水、醋等
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2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
發光二極體省電、體積小,在我們的生活中已經全面取代原本的燈泡、燈管的使用。
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3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
大部分的水溶液不容易導電,所以洗澡後光腳在浴室使用吹風機是安全的。
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4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
測試水溶液導電性的實驗中,醋、食鹽水、糖水等水溶液,都容易讓發光二極體發亮。
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5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
食鹽水的導電性佳,由此判斷所有中性水溶液,都是容易導電的水溶液。
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6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
經過水溶液的導電性實驗之後,我們知道酸性水溶液和鹼性水溶液都容易導電,而中性水溶液則無法導電。
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7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
廁所清潔劑的水溶液經過石蕊試紙檢驗之後呈現酸性,由此判斷,廁所清潔劑水溶液應該容易導電。
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