4年级科学-光的特性
Quiz
•
Science
•
1st Grade
•
Practice Problem
•
Medium
CHENG WAN FEI
Used 52+ times
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15 questions
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1.
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
2.
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
3.
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
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中显示影子和光源。
哪个是物体影子正确的位置?
P
Q
R
S
5.
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。
6.
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?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中显示一项实验。
根据有关实验,我们可作出什么结论?
光源与物体的距离越近,形成的影子越小。
光源与物体的距离越远,形成的影子越小。
物体与白幕的距离越近,形成的影子越大。
物体与白幕的距离越远,形成的影子越小。
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