
會考8上3章聲音
Authored by 葉 進坤
Science
8th Grade
Used 16+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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教育會考】
波長
波速
頻率
振幅
2.
MULTIPLE CHOICE QUESTION
2 mins • 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教育會考】
波長
波速
振幅
頻率
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
垃圾車收垃圾地點的順序及各站間距離如附圖所示。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
2.0s
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
「燃燒化石燃料會產生二氧化碳,二氧化碳經由海洋溶解吸收後,海水仍維持弱鹼性,但微小的pH值變化仍可能會影響龐大的海洋生態。」根據此敘述,關於海水吸收二氧化碳的過程與結果,下列的判斷何者正確?【103.會考】
海水[H+]增加,且海水[H+]>[OH-]
海水[H+]減少,且海水[H+]<[OH-]
海水[H+]增加,且海水[H+]<[OH-]
海水[H+]減少,且海水[H+]>[OH-]
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
附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,則 λ1 / λ2 為多少?【104.會考】
0.25
0.5
1
2
6.
MULTIPLE CHOICE QUESTION
2 mins • 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34000cm/s的環境下,若發出波長為1000cm,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教育會考】
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
7.
MULTIPLE CHOICE QUESTION
2 mins • 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1m。若丟入硬幣前,在水面上距離O點1m及2m的P、Q兩點,分別有一片落葉,且O、P、Q在同一直線上,如附圖所示,則硬幣丟入水中3秒後,兩片落葉的距離約為多少?【106教育會考】
3m
5m
6m
9m
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