四年级科学单元五:光沿着直线传播
Quiz
•
Science
•
4th Grade
•
Hard
Jun Hong
Used 6+ times
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22 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
左边的图片显示了晓华所进行的一项实验。
若晓华移动R纸卡,那将会产生什么样的变化呢?
晓华依然能够看见对面的烛光
晓华无法看见对面的烛光
晓华所看见的烛光将会变得更微小
晓华所看见的烛光将会变得不整齐
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
左图的实验与哪些日常生活中的事情有关系?
激光尺
望远镜
显微镜
口腔镜
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
1)下图显示一间房子在白天的情况。图中的情况证明了什么?
A. 光会反射
B. 光会折射
C. 光沿着直线传播
D. 光可以透过不透明体
A
B
C
D
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
明强用手电筒来照射蚁穴。为什么明强看不到蚂蚁?
A. 光只能沿直线传播
B. 手电筒的光不够强烈
C. 光不容易被反射回来
D. 蚂蚁非常害怕见到光
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
下表显示一项实验的结果。
如果将光源与物体的距离增至 40 cm,预测影子的高度。
A. 5 cm
B. 20 cm
C. 32 cm
D. 60 cm
A
B
C
D
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
以下哪一项物品会形成清晰的影子?
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
以下哪个是影子形成的原因?
物体遮住了光线
光线遮住了物体
光影响了物体的形状
光影响了物体的性质
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