聲音 會考試題3
Quiz
•
Physics
•
8th - 9th Grade
•
Practice Problem
•
Hard
CHEN HSI CHUAN
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26 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
勝利號漁船在海面上,以聲納偵測魚群,0.6秒後收到回聲,則魚群與漁船的距離約為多少公尺?(聲音在海水中的速率約為1500公尺/秒)
150
450
900
800
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何種現象的原理和聲音的反射無關?
在空谷中叫喊可以聽到回聲
振動的音叉在水面產生漣漪
傳聲筒能夠使聲音傳得較遠
聲納可以用來探測海洋深度
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小強在觀看煙火時,看到亮光後,過了2秒鐘才聽到爆炸聲。已知聲音和光在空氣中的傳播速率分別為340公尺/秒和30萬公里/秒,則煙火爆炸的地點與小強的距離約為多少?
170公尺
680公尺
15萬公里
60萬公里
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在曠野中呼喊,聲音因傳遠而變小聲,則下列何者也隨之變小?
聲音的振幅
聲音的頻率
聲音的速率
聲音的波長
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
傳聲介質及其特性會影響聲音傳播的快慢,已知聲音在0℃的空氣中傳播速率為331公尺/秒,溫度每升高1℃,其速率增加0.6公尺/秒。曉妍想測量於住家附近一枯井的深度,她在井口向內喊話,經過0.20秒後聽到回聲,若當時井中氣溫維持在15℃,則曉妍測得的枯井深度為多少公尺?
33
34
66
68
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一物體每分鐘振動 600 次,則下列何者為其振動的頻率?
1/600 秒
1/10 秒
10Hz
600Hz
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
國堅在靜止的船上同時對山壁發出超聲波及大喊一聲,假設當時無風,則下列關於他接收到這兩種反射訊息之敘述,何者正確?
先收到超聲波,因為它的波長較長
先收到超聲波,因為它的響度較大
兩者同時收到,因為它們的頻率相同
兩者同時收到,因為它們的傳播速率相同
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