
4年级科学:声音
Authored by Foong Lim
Science
1st - 6th Grade
Used 58+ times

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20 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
哪项是声音的传播方式?
四面八方
波浪
直线
曲线
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
嘉辉在一个空荡的房子里大喊一声,1秒后就听到自己的叫喊声。这是什么现象?
超声波
雷达
声呐
回声
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
发声的物体叫什么?
声源
声呐
回声
超声波
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
人类可以用以下的方法让乐器发出声音,除了_________
吹
敲
摇
咬
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
我们唱歌时,空气通过__________因振动而发声。
喉咙
颈项
声带
丹田
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
震动越大,所产生的声音越__________。
大
小
高
低
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪个地方的的回声最久最长?
山谷
课室
箱子里
电影院
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