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4-1練習卷

Authored by Kevin Ton

Science

4th Grade

Used 9+ times

4-1練習卷
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26 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

要將乾電池裝入電器的時候,不用注意乾電池正極和負極的放置方向是否正確。

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2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

燈泡一個接一個串接後,再用電線連到乾電池兩端,這種連接方式稱為「燈泡串聯」。

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3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

乾電池的兩端都是平的,因此無法從外觀分辨正極、負極。

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4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在多個燈泡並聯的電路中,每一個燈泡的亮度會不大一樣。

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5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

不管電路連接的方式是哪一種,只要形成通路時,每種通路中的單個燈泡亮度都會相同。

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6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

要使電路形成通路,要先注意電池是否有電、燈泡有沒有壞等。

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7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

燈泡串聯時,其中一個燈泡壞掉,其他的燈泡還是會發光。

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