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四年级-科学-声音

Authored by KEH Moe

Science

4th Grade

Used 48+ times

四年级-科学-声音
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

声音是靠物体的________产生的。

振动

跳动

蠕动

爬动

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

声音能在______、_______、_______物质中传播。

空气

固体

真空

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

声音的传播是?

直线

波浪线

四面八方

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

声音会反射吗?

不会

5.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

以下哪一些是声音反射的现象?

回声

声呐

超声波

海豚音

6.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

以下都是声音的用处:

可以传递信息

可以填饱肚子

可以探测海底

可以制成超声波

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

找出哪个是利用声音的反射才能进行的活动?

探测胎儿发育情况

探测海底深度

探测天空高度

探测物体在海底的位置

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