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第二冊第四課《電與生活》

Authored by Chi LEUNG

Science

5th Grade

Used 46+ times

第二冊第四課《電與生活》
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13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一種電器主要是利用了電能「發熱」的功能來運作?

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2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一種電器主要是利用了電能「發光」的功能來運作?

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3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一種電器主要是利用了電能「發聲」的功能來運作?

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4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一種電器主要是利用了電能「產生動力」的功能來運作?

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5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

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燈泡通電後,燈泡內的鎢絲會產生甚麼?

(答案可多於一個。)

聲音

光

熱

磁力

Answer explanation

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6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

如果把電線繞在鐵棒上,然後把電線接駁電源,鐵棒會產生甚麼?

磁力

光

熱力

電力

Answer explanation

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7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

用電線連接乾電池和幼銅線,幼銅線會產生甚麼?

磁力

電力

熱力

光

Answer explanation

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產生的熱力可以用作切割發泡膠

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