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低年级科学常识比赛

Biology, Other Sciences

1st - 3rd Grade

Used 121+ times

低年级科学常识比赛
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

请选出正确答案。

U 形磁铁
马蹄形磁铁
条形磁铁
环形磁铁

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

当磁铁异极互相靠近时就会________.

相斥
相拉
相吸
相推

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

当磁铁同极互相靠近时就会________.

相斥
相排
相吸
相拉

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

每块磁铁都有两个磁极, N叫____ ,
S叫___.

东极,西极
北极, 南极
南极,东极
南极,北极

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

磁铁能吸引的磁性物体越多,表示磁力越强。

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪项不是磁性物体?

钥匙
塑料瓶
回形针
铁钉

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪项不是磁铁在日常生活中的用处?

白板
纸盒
冰箱
黑白棋盘

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