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四年级科学 光的反射

Authored by SEE Moe

Science

4th Grade

Used 77+ times

四年级科学 光的反射
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12 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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上图显示Q物体反射光线的情况。

根据上图,下面哪种有可能是Q物体?

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2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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3.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

以下哪些物体应用光反射的原理来操作?

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4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

什么是光的反射?

光沿着直线传播的现象

光遇到障碍物时形成影子的现象

光照射在物体的表面时消失的现象

光照射在物体的表面时改变传播方向的现象

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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P和Q分别是什么表面?

P :砂纸 Q :玻璃窗

P :铁片 Q :镜子

P :镜子 Q :柏油路

P :沙地 Q :木板

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下面哪种物体是具有良好的反射光的能力?

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7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下面哪项有关光的说明是正确的?

光是沿着曲线传播的

光穿过透明体时,会形成影子

当光照射在物体表面时会被反射

光的折射会使水里的笔看起来变长了

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