水溶液的導電性

Quiz
•
Science
•
6th - 8th Grade
•
Medium
後龍國小 後龍國小
Used 1+ times
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪種水溶液具有導電性?
氨水
酒精
砂糖水
以上皆否
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪種液體的導電性最強?
礦泉水
純水
海水[食鹽水]
蒸餾水(純水)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪種物質在水中溶解後能導電?
醇類
澱粉
氯化鈉[鹽]
油脂
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
導電液體的主要特徵是什麼?
具有高粘度
不含任何溶質
含有自由移動的離子
顏色透明
5.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
發光二極體的長腳端應該要接在電池那一極接出來的電線上?
正極
負極
南極
北極
6.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
今天我們上課的單元是?
水溶液的酸鹼性
水溶液的溫度與溶解速度
水溶液的顏色與濃度
水溶液的導電性
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
所有的水溶液都能導電嗎?
是
都能
沒錯
不一定
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何種溶液的導電性較弱,可以讓LED(發光二極體)發出微弱的燈光?
醋
氨水
食鹽水
硝酸鉀
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
導電液體的導電性與其濃度有何關係?
濃度越高,導電性越強
濃度越低,導電性越強
濃度與導電性無關
只有特定濃度才會導電
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