
四年级科学 声音总结
Authored by world edu
Science
4th Grade
Used 5+ times

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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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