
4-2神奇的電磁鐵
Quiz
•
Science
•
6th Grade
•
Medium
chiu L
Used 3+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將通電的電線靠近指北針後,指針向左偏轉,若讓電池的正、負極方向相反,指針會有什麼變化?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
輝太郎把電磁鐵中使用一段時間的電池更換成全新的,會發生什麼變化?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小剛製作電磁鐵的過程中,哪一項錯誤?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將電磁鐵的電池正負極反向連接後,下列哪一個敘述錯誤?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
志宏想了解「線圈數量多寡是否會影響電磁鐵的磁力」時,應該要改變下列哪一個因素?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪個小朋友的作法,可以讓通電中的漆包線線圈的磁力增強?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
甲與乙兩組電磁鐵除了纏繞的線圈數不同外,其他因素都相同。下列何者敘述正確?
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