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三、水溶液(活動3 水溶液的導電性)

Authored by 育碩 胡

Physics

5th Grade

三、水溶液(活動3 水溶液的導電性)
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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

×

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。

×

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。

×

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。

×

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。

×

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。

×

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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