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四年级科学 声音总结

Authored by world edu

Science

4th Grade

Used 5+ times

四年级科学 声音总结
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20 questions

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1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

声音是通过_____传播?

振动

空气

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

哪个地方的回音最久最长?

山谷

电影院

课室

箱子里

3.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

以下哪项不是噪音带来的坏处?

使我们感到烦躁

无法平静和专心

让我们互相沟通

对听觉产生危害

4.

FILL IN THE BLANKS QUESTION

30 sec • 1 pt

好听的声音是让人感觉心情愉悦的声音,我们也称之为【 】

(a)  

5.

FILL IN THE BLANKS QUESTION

30 sec • 1 pt

有害的声音是让人感觉烦躁的声音,我们也称之为【 】

(a)  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

为什么空荡荡的房间会听到回声?

声音通过空气传播

声音被折射

声音往四面八方传播

声音碰到障碍物反射回来

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

怎样的表面会反射声音?(选择两个答案)

柔软

平滑

粗糙

坚硬

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