4年级科学 第6课 声音
Authored by LEE Moe
Science
4th Grade
Used 18+ times
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10 questions
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1.
FILL IN THE BLANKS QUESTION
30 sec • 1 pt
声音是怎样产生的？
因为物体的 (a) 而产生的。
2.
FILL IN THE BLANKS QUESTION
30 sec • 1 pt
声音可以通过哪5种方法产生？
1
2
3
4
5
(a)
3.
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
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
震动越大，所产生的声音越__________。
大
小
高
低
5.
FILL IN THE BLANKS QUESTION
30 sec • 1 pt
声音和水一样，可以通过 (a) 的形式向远处传播。
6.
FILL IN THE BLANKS QUESTION
30 sec • 1 pt
声音的反射可以产生哪3个现象？
1
2
3
(a)
7.
FILL IN THE BLANKS QUESTION
30 sec • 1 pt
什么是回声？
传播出去的声音碰到 (a) 时反射回来让我们听到再次听到这个声音。
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