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4-2練習卷

Authored by Kevin Ton

Science

4th Grade

Used 14+ times

4-2練習卷
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13 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

在通路的電路中加入連接物,如果無法使燈泡發光的話,這個連接物就是屬於「容易導電的物品」。

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2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在電路中可以利用長尾夾來製作電路開關。

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3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

如果手電筒裡的金屬片不見了,可以用厚紙板代替。

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4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在電路中加入某種連接物,如果無法使燈泡發光,可以知道這個連接物是「絕緣體」。

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5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

銅、鐵等金屬是導體,將這些材料製成的物品放到電路中會形成通路。

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Media Image

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

用來做開關的物品要有什麼特性?

容易導電

外觀漂亮

重量很輕

價格昂貴

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

將釘書針接在通電的裝置裡,電燈中的燈泡會發光,這代表釘書針有什麼特性?

具有正極和負極

可以導電

可以被磁鐵吸引

會讓電路形成斷路

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