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二年级科学第六课光和暗

Authored by Guru Moe

Science

1st - 6th Grade

Used 13+ times

二年级科学第六课光和暗
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪项是白天的主要光源?

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2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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晚上在野外露营需要哪一种光源?

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3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在怎样的情况下,学生们看不见黑板上的字?

光亮

白天

黑暗

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

影子的位置和光源的位置是_______的。

相反

一样

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

影子是怎样形成的?

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6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪种物体在灯光照射下不会形成清晰的影子?

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7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

当光被物体______时,就会形成影子

透过

阻挡

照射

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