
2年级 科学 光和暗 复习1

Quiz
•
Science
•
2nd Grade
•
Medium
Tracy liew
Used 40+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.什么情况下会产生影子?
A. 没有光源
B. 当周围够明亮
C.当光透过物体
D. 当光被阻挡
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
月亮在夜晚时能为我们照明,但月亮却不是光源。为什么?
A. 月亮的光不够亮
B. 月亮无法自行发光
C.月亮有时会消失
D. 月亮的形状会改变
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
挡光被物体( ) 时,就会形成影子。
照射
阻挡
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
物体影子的形成______光源。
需要
不需要
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个不是光的来源?
太阳
火堆
月亮
交通灯
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是光的来源?
会发光的物体
不会发光的物体
会动的物体
不会动的物体
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
( )能使我们看见周围的东西?
太阳花
月亮
光
课本
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