107G5030304

107G5030304

5th Grade

10 Qs

quiz-placeholder

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107G5030304

107G5030304

Assessment

Quiz

Chemistry

5th Grade

Medium

Created by

Black David

Used 2+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

將接有電池和發光二極體的導線兩端放入小蘇打水中,因為小蘇打水容易導電,所以發光二極體會發亮。

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

連接發光二極體時,長的一端必須與電池的正極接出來的電線相連接,短的一端再與負極相接,形成通路後,發光二極體才會發亮。

3.

MULTIPLE CHOICE QUESTION

30 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

30 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。

5.

MULTIPLE CHOICE QUESTION

30 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。

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

小嘉將電池和電線連接發光二極體,形成通路時,如果將下列哪一項物品連接在原本的通路中,發光二極體就不容易亮? 
迴紋針 
食鹽水 
糖水 
鐵釘。

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

小美將電池和電線連接發光二極體,形成通路時,如果將下列哪一項物品接在原本的通路之中,發光二極體仍會持續發亮? 
醋 
竹筷 
純水 
橡皮擦。

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