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五年级 电

Authored by world edu

Science

5th Grade

Used 1+ times

五年级 电
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12 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

下图显示一种电源。哪项正确地说明上述电源?

提供大量的电能。

把化学能转换成电能。

适用于计算器和热水器。

通过磁力把动能转换成电能。

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

“方便操作;把汽油或柴油里的化学能转换成电能。”这是电源K的资料。电源K是什么?

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3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

下图显示一种电源。哪项使用上述电源来操作?

巴士

摩托

冰箱

遥控器

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

哪项所使用的电源与上述物品相同?

闹钟

电脑

手电筒

计算器

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

下图显示一种电器。操作这种电器的电能来自哪里?

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Media Image
Media Image
Media Image

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

K电源:把光能转换成电能;不会对环境造成污染。K电源适用于下面哪种器具?

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7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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根据以上的说明,它是哪一种电能?

蓄电池

干电池

发电机

太阳能电池

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