
初一下册第01章-声音和耳
Quiz
•
Science
•
7th Grade
•
Practice Problem
•
Medium
杨翊材老师 杨翊材老师
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24 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列事例中,属于固体振动发声的是( )。
吹笛子发出的声音
电铃发出的声音
潮水涨落发出的声音
自行车爆胎发出的声音
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
进行百米赛跑,终点线上的裁判应该在看到发令枪的烟雾那一刻按下停表。如果某裁判不小心在听到枪声那一刻开始计时,那么这个裁判测得的结果与运动员的实际跑步 成绩相比( )。
快些
慢些
一样快慢
无法确定
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
声音不能在( )中传播。
固体
真空
气体
液体
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在寺庙内敲响大钟时,有同学发现停止对大钟的撞击后,大钟余音未止。其主要原因是( )。
大钟还在振动
钟声的回音
钟的振动引起了寺庙的振动
人的听觉发生延长
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
男低音独唱时由女高音轻声伴唱。下面对两人声音的描述正确的是( )。
男低音比女高音音调低,响度小
男低音比女高音音调低,响度大
男低音比女高音音调高,响度大
男低音比女高音音调高,响度小
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
会场里的扩音设备是用来( )的。
增大声音的响度
提高声音的音调
改变声音的音色
加快声音的速度
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列控制和减弱噪音的措施中,不可行的是( )。
在公路边种植树木
在窗户安装双层玻璃
在耳内塞棉花团
开摩托车时加大油门
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