
9下自然習作ch1-電流熱效應與電化學
Quiz
•
Science
•
9th Grade
•
Medium
林 炳弘
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32 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列敘述中以底線標記的導體,何者不是藉由離子的移動而導電?
伏打電池中含食鹽水的溼抹布
連接電源與電器之間的金屬導線
鋅銅電池中連接燒杯的鹽橋水溶液
碳鋅電池內部兩電極間的糊狀電解質
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小華新添購一臺電磁爐,附圖為電磁爐的電器規格,請問下列敘述何者錯誤?
此電磁爐應使用 110 伏特的電源
此電磁爐應使用直流電為電源
使用此電磁爐,每秒會消耗 1100 焦耳的電能
若小華用電磁爐煮湯 60 分鐘,此電磁爐將消耗 1.1 度的電能
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
電力公司會在家庭或工廠用戶端裝設瓦時計(電表),它是用來記錄何種物理量的儀器?
電壓
電量
電能
電功率
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在電解硫酸銅水溶液時,使用不同的電極,會產生不同的反應,請問下列何者錯誤?
以碳棒為電極,正極產生銅離子
以碳棒為電極,水溶液顏色會變淡
以銅片為電極,負極產生銅
以銅片為電極,水溶液顏色不變
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
附表為甲、乙兩款省電燈泡所使用的電壓及其電功率。若兩燈泡正常使用 100 小時,甲消耗的電能為 X甲 度;乙消耗的電能為 X乙 度,則下列關係式何者正確?
X甲=X乙
X甲=2X乙
X甲=4X乙
2X甲=X乙
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
附圖為一鋅銅電池的裝置,則下列敘述何者正確?
依據指針偏轉方向,銅片為正極
通電一段時間後,鋅片質量會減少,銅片質量會增加,且減少的質量恰等於所增加的質量
鹽橋內的水溶液可以蒸餾水取代,效果不變
通電持續進行,燒杯甲內的鋅離子數目會逐漸增加,而燒杯乙內的銅離子會維持不變
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
附圖為以碳棒為電極的電解硫酸銅水溶液的裝置,則下列敘述何者正確?
在甲碳棒附近會有氫氣產生
經一段時間後,乙碳棒質量會增加
若改以銅棒作為電極,則硫酸銅水溶液濃度會增加
反應一段時間後,水溶液顏色會變紅
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