
國中自然9下ch1電流的熱效應與化學效應
Authored by 翰林出版國中自然 翰林出版國中自然
Chemistry, Physics
9th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列哪些電器是利用電流的熱效應?
電暖爐
烤箱
吹風機
以上皆是
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
有關交流電與直流電的比較,何者正確?
發電廠輸送的是直流電,一般電器可直接使用
交流電適用於家用電器
直流電簡記為DC,交流電簡記為AC
家庭插座的電流是直流電
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列關於電能的敘述何者錯誤?
是可以再生的能源
可以快速轉換為各種能量
節約用電便等於節約各種能源
使用方便又便於傳送
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
發電廠為減少電能損耗,通常採用下列何種方式輸送電力至用戶端?
高電壓、高電流
高電壓、低電流
低電壓、高電流
低電壓、低電流
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
台電供給一般家庭用電的電壓和頻率為下列何者?
220V、50Hz
110V、100Hz
110V、60Hz
220V、110Hz
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列何者並非常見的二次電池?
鎳氫電池
鋰電池
鉛蓄電池
鹼性電池
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
在電解硫酸銅水溶液時,若以銅片當電極,則下列敘述何者錯誤?
正極反應類型為氧化
電解質溶液逐漸轉為淡藍色
正極產物為Cu2+
負極反應類型為還原
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