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J1_第1章(下)声音和耳_01

Authored by W.Y. Tan

Science

7th Grade

Used 84+ times

J1_第1章(下)声音和耳_01
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16 questions

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1.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

声音传播需要 (a)   。(两个字)

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

在泳池里放置一个响着的闹钟,你沉入水里时,你听到闹钟的声音。传播闹钟声音的介质是_______。

空气

泳池的砖头

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

声音是_______。

能量

物质

4.

MULTIPLE SELECT QUESTION

1 min • 1 pt

发出声音的固体都在_______。

振动

震动

真动

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

地球板块移动并且发生碰撞时,地面往往会出现强烈的_______。

震动

真动

振动

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

以下介质中,哪一种介质传播声音的速度最快?

桌子

空气

7.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

声音以 (a)   的方式将声源向外传播。(1个字)

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