
南一六上第四單元電與磁
Quiz
•
Science
•
6th Grade
•
Practice Problem
•
Easy
縣立員林國小陳麗君(資) 縣立員林國小陳麗君(資)
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
指北針的指針尖端固定指向北方,因此指針尖端會與磁鐵的哪一個部位相吸?
N極
S極
正中間
與所有的部位都會相吸
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
「地球內部就像是有個大磁鐵一樣,具有S極和N極,所產生的磁場稱為『地磁』。用磁鐵製成的指北針之所以能指向南北,就是和地磁有關。另外,地磁還可以阻擋太陽釋放出的帶電粒子,讓它們在抵達地球前就轉移開來,避免這些帶電粒子影響通訊設備。」依據上文,下列哪一項敘述正確?地球內部並非真的有一根磁鐵 ②指北針的磁鐵指針中,S極會指向地磁N極 ③如果沒有地磁,地球上的通訊設備可能會失靈 ④以上敘述都正確
地球內部並非真的有一根磁鐵
指北針的磁鐵指針中,S極會指向地磁N極
如果沒有地磁,地球上的通訊設備可能會失靈
以上敘述都正確
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
亮軒拿磁鐵繞著指北針轉,指北針指向北方的尖端會跟著磁鐵轉,表示磁鐵的N極繞著指北針轉
0
X
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
指北針指向北方的那一端會指向地磁的N極,另一端則指向地磁的S極
0
X
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
宗興將通電的電線放在指北針的下方,指針向右偏轉,如果同時改變電池的正負極方向,並將電線改放在指北針的上方,則指針向左偏轉
O
X
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
依據德國測量家電電磁波的測量紀錄可以了解,當距離電器愈近時,電磁波的強度就愈強
0
X
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在「串聯電池數量對電磁鐵磁力的影響」實驗中,哪些因素需要改變?
線圈內的材料
線圈纏繞的圈數
電池串聯的數量
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