飛機是重要的交通工具,飛機起飛時的音量約為110〜130分貝,不能算是噪音。
109-2學年五年級自然第四單元測驗(康軒版)

Quiz
•
Science
•
5th Grade
•
Easy
蔡依純 蔡依純
Used 9+ times
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22 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
O
X
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
如圖,伸縮喇叭這種樂器,是利用改變空氣柱的長短,吹奏出高低不同的音調。
O
X
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
彈奏烏克麗麗時,用手按住弦,主要的目的是控制聲音的大小。
O
X
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
所有的樂器都要有音箱才能發出聲音。
O
X
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
彈奏烏克麗麗時,同一條弦,拉得越緊,彈撥時發出的聲音越高。
O
X
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
用力彈撥簡易弦樂器,發出的聲音會變大。
O
X
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
佑佑自製了一個簡易弦樂器,怎樣才能改變發出聲音的高低呢?
改變紙盒的顏色
用大小不同的力氣彈撥橡皮筋
將橡皮筋改成釣魚線
彈撥簡易弦樂器上長短不同的橡皮筋
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