四年级科学《 单元5.1练习1：光的特性 ~光沿着直线传播》
Authored by CELIA HO Y W
Science
1st - 10th Grade
Used 65+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
哪项有关光的传播说明是正确的？
光会透过任何物体
光会沿着直线传播
光的传播不会形成影子
光会使物体变小
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪项是能影响影子形状的因素？
光源与物体的距离
光源与屏幕的距离
物体的摆放方式
物体的大小
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
哪项会影响影子的形状？（答案可超过一个）
光源照射的方向
物体摆放的方式
物体表面的光滑度
物体与光源的距离
4.
MULTIPLE CHOICE QUESTION
30 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
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是透明体？
有弹性的物体
能让电流通过的物体
能让全部光线透过的物体
能传热的物体
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如何才能让影子变得更大？
减少物体和屏幕的距离
减少物体和光源的距离
增加光源
减少物体的面积
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪项有关光的传播说明是正确的？
光会穿透任何物体
光只会沿着直线传播
光的传播不会形成影子
光的传播没有距离限制
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