將兩個磁鐵互相靠近時,如果兩個磁鐵互相吸引,此時可以確定這兩個磁鐵必定是以怎樣的方式靠近的?
第二次月考 - 磁鐵

Quiz
•
Science
•
3rd Grade
•
Medium
黃奕豪 縣立三春國小
Used 24+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(1)N極對S極
(2)N極對N極
(3)S極對S極
(4)不一定。
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
磁鐵的「磁極」指的是什麼?
(1)磁力最大的部位
(2)磁力最小的部位
(3)磁鐵最粗的部位
(4)磁鐵最細的部位。
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
將兩個磁鐵以N極對S極的方式互相靠近時,結果會怎樣?
(1)互相吸引
(2)互相排斥
(3)先吸引再排斥
(4)先排斥再吸引。
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪一個磁鐵有N極和S極?
(1)圓形磁鐵
(2)長條形磁鐵
(3)U形磁鐵
(4)以上都有。
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
張嘴動物玩具嘴巴裡的小圓形磁鐵要怎麼貼,才可以讓動物的嘴巴張開?
(1)不同極相對
(2)同極相對
(3)同極相對或不同極相對都可以
(4)一邊貼磁鐵,另一邊改貼迴紋針。
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
將兩個磁鐵的同磁極互相靠近,會產生什麼現象?
(1)互相吸引
(2)互相排斥
(3)磁鐵斷裂
(4)有時互相吸引,有時互相排斥。
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