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J1_第二章(下)光

Authored by W.Y. Tan

Science

7th Grade

Used 4+ times

J1_第二章(下)光
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10 questions

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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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