四年级科学单元5 光沿着直线传播
Quiz
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Science
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3rd Grade
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TAN Moe
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 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
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
3.
MULTIPLE CHOICE QUESTION
45 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
4.
MULTIPLE CHOICE QUESTION
45 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
5.
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
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中显示P物体的影子。
根据影子,推测P物体的形状。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中显示一个物体被光源照射。
哪项是该物体的影子?
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