J1_第二章(下)光

Quiz
•
Science
•
7th Grade
•
Medium
W.Y. Tan
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
光是
能力
物质
能量
物体
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
光在真空_________。
无法传播
可以传播
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
光年是测量星球间_________的单位
距离
能量
质量
光度
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
光速是_______。
3 x 108 ms-1
3.0 x 1038 ms-1
38 x 108ms-1
3.8 x 108ms-1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
光在不同介质传播时会产生。。。。。
反射
折射
影子
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
光传播时遇到不透明体的时候会。。。。(2个答案)
拐弯
无法通过而停止传播
产生折射
产生影子
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果入射角是37°,那么请问反射角是多少度?(直接写号码)
18.5°
37°
74°
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