
會考理化3波動與聲音
Authored by 葉 進坤
Science
9th Grade
Used 16+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
樂譜上常用 f、p 等力度記號來表示樂曲在此處的音量(響度)大小應該如何變化,此類力度記號與聲波的下列何種特性最相關?[109.會考]
波長
波速
頻率
振幅
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
曉娟分別敲擊數支音叉,其聲音在儀器上顯示之波形分別如圖所示,橫軸(t)表示時間,縱軸(y)表示聲波振動的位移。若每一支音叉發出的聲音都是單一頻率,則哪些圖形可能來自同一支音叉?〔98. 基測Ⅰ〕
甲、乙
甲、丙
乙、丁
丙、丁
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如表中兩個音階的唱名同為 Do,但中央 C 與高音 C 的頻率卻不相同。若兩者在相同條件空氣中的傳播速率相同,波長分別為λ1、λ2,λ1 / λ2則為多少?〔104.會考〕
0.25
0.5
1
2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
現今智慧型手機可下載許多不同的 App(應用程式),其中一些可用來量測週遭聲波的音量,當音量愈大時,App 顯示的數值也愈大,則此數值的大小主要與聲波的何種性質有關?〔105.會考〕
波長
波速
振幅
頻率
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
附表為兩種動物所能聽見聲音的頻率範圍。在空氣溫度為 15℃,聲波波速為 34000 cm/s 的環境下,若發出波長為 1000 cm,且音量足夠大的聲波,則參閱表中的資訊,下列有關此兩種動物是否能聽到此聲波的敘述何者最合理?〔107. 會考〕
兩種動物都聽得到此聲波
兩種動物都聽不到此聲波
此聲波大象聽得到,而兔子聽不到
此聲波兔子聽得到,而大象聽不到
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
平靜無風的下午,在許願池上 O 點丟入一枚硬幣,使水面上產生一個圓形水波,已知圓形水波的半徑每秒增加 1 m。若丟入硬幣前,在水面上距離 O 點 1 m 及 2 m 的 P、Q 兩點,分別有一片落葉,且 O、P、Q 在同一直線上,如圖所示,則硬幣丟入水中 3 秒後,兩片落葉的距離約為多少?〔106.會考〕
3 m
5 m
6 m
9 m
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. 垃圾車收垃圾地點的順序及各站間距離如圖所示。垃圾車每停一站便會開始播放音樂提醒附近的居民來倒垃圾,垃圾車在第1站停下來播放音樂並收垃圾,若忽略風及溫度對聲速的影響,則此時在第2站的小強與第3站的小樂聽到音樂傳來的時間差為下列何者?(當時聲速為340m/s)〔103.會考〕
0
1.0s
1.5s
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