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Y4 单元五 光沿直线传播

Authored by Loi Yueneng

Science

4th Grade

Used 4+ times

Y4 单元五 光沿直线传播
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14 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

光是沿着________传播的。

直线

虚线

反射

折射

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

舞台上的光束是_______的

弯曲

笔直

模糊

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

玻璃窗是________, 透光能力_______, 形成________的影子。

透明体,弱,模糊

透明体,强,清晰

透明体,强,非常模糊

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

书本是________, 透光能力_______, 形成________的影子。

不透明体,弱,清晰

半透明体,强,清晰

不透明体,弱,非常模糊

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

毛玻璃是________, 形成________的影子。

透明体,模糊

半透明体,清晰

半透明体,模糊

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

根据上图,哪个与上图影响影子大小的因素有关?

物体与光源的距离

光源与屏幕的距离

物体的摆放方式

光源照射的方向

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

光源与物体的距离越____,影子的大小越___

近,小

近,大

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