
U4-2 磁鐵的特性
Authored by 王 瀚慶
Science
3rd Grade
Used 16+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
將長條形磁鐵的 S 極靠近另一個磁鐵的兩端,哪一端會被吸引?
N極
S極
都會被吸引
都不會被吸引
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
磁鐵的磁極具有什麼特性?
只會互相吸引
只會互相排斥
同極性會互相排斥,異極性會互相吸引
同極性會互相吸引,異極性會互相排斥
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
將磁鐵的 N 極靠近另一塊磁鐵的 N 極,會發生什麼現象?
互相排斥
互相吸引
沒有反應
先排斥,再互相吸引
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
將兩塊磁鐵的 N 極與 N 極互相靠近,磁鐵會有什麼現象?
互相排斥
互相吸引
沒有改變
先相斥再相吸
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
小雄將沒有標示磁極的長條形磁鐵一端靠近圓形磁鐵的 N 極時,磁鐵會互相吸引,表示小雄靠近圓形磁鐵的磁鐵那一端如何?
磁極是 N 極
磁極是 S 極
磁力很強
磁力很弱
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
米米將ㄅ磁鐵塗成紅色的一端靠近ㄆ磁鐵,發現ㄆ磁鐵被推開。下列敘述何者正確?
這是因為不同極互相吸引的關係
這是因為同極互相排斥的關係
ㄆ磁鐵是被手推開的
塗成紅色的磁鐵能推開所有物品
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
桌上放著一個沒有標示的磁鐵,小信想知道它的ㄅ端是哪一種磁極。請問他應該怎樣做比較適當?
拿木棒靠近,如果會排斥就是 S 極
拿鐵製迴紋針靠近,如果會吸引就是 N 極
拿長條形磁鐵 N 極靠近,如果會吸引就是 S 極
拿圓形磁鐵 S 極靠近,如果會排斥就是 N 極
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