18/12/2020四年级科学单元5:光的特性
Quiz
•
Science
•
4th Grade
•
Practice Problem
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Medium
ahsiew tiong
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
…会影响影子的大小
物体与光源照射的方向
物体与光源的距离
物体与光源的大小
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
光被物体阻挡会…
形成影子
会反射
会折射
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
阳光透过雨滴被折射会形成…
彩虹
白云
蓝天
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪个不透光
透明体
半透明体
不透明体
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
为什么我们能够看到四周的物体?
物体的反光能力很强。
物体能够吸收大部分的光。
物体的表面一般上是光滑的。
物体把光反射到我们的眼睛里。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下是有关光的X特性的说明。
《当光照射到物体上时会改变传播的方向。》
X代表什么光的特性?
光会反射
光会反射三次
光不是直线传播
光的反射没有规律
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
上图显示一种现象。图中的现象显示了哪个光的特性?
光能透过透明物体
光沿着直线传播
光传播得很快
光线会转弯
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