Getaran, Gelombang, Dan Bunyi

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| By Nugrahascience

Nugrahascience

Community Contributor

Quizzes Created: 1 | Total Attempts: 3,764

Questions: 10 | Attempts: 3,764 | Updated: Mar 21, 2023

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Questions and Answers

1.

Gelombang bunyi yang dapat ditangkap oleh sistem pendengaran manusia adalah ....
- A.
  
  Infrasonik
- B.
  
  Audiosonik
- C.
  
  Intrasonik
- D.
  
  Ultrasonik
Correct Answer
B. Audiosonik

Explanation
The correct answer is Audiosonik. Audiosonik refers to sound waves that are within the range of frequencies that can be detected by the human auditory system. These sound waves are typically between 20 Hz and 20,000 Hz. Infrasonik refers to sound waves with frequencies below the audible range, while ultrasonik refers to sound waves with frequencies above the audible range. Intrasonik is not a commonly used term in the context of sound waves.

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2.

Bunyi audiosonik memiliki frekuensi ....
- A.
  
  Kurang dari 20Hz
- B.
  
  Lebih dari 20Hz
- C.
  
  20-20000Hz
- D.
  
  Lebih dari 20000Hz
Correct Answer
C. 20-20000Hz

Explanation
The correct answer is 20-20000Hz. This range represents the frequency of audiosonic sound. Sound waves with frequencies below 20Hz are considered infrasonic, while those above 20000Hz are considered ultrasonic. Therefore, the correct answer is the range of frequencies that fall within the audible range for humans.

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3.

Bunyi ultrasonik memiliki frekuensi ....
- A.
  
  Kurang dari 20Hz
- B.
  
  Lebih dari 20Hz
- C.
  
  20-20000Hz
- D.
  
  Lebih dari 20000Hz
Correct Answer
D. Lebih dari 20000Hz

Explanation
Ultrasonic sound refers to sound waves that have a frequency higher than the upper limit of human hearing, which is typically considered to be around 20,000 Hz. Therefore, the correct answer is "lebih dari 20000Hz" (more than 20,000 Hz). Ultrasonic sound waves are commonly used in various applications such as medical imaging, cleaning, and detection due to their high frequency and unique properties.

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4.

Gelombang bunyi yang dikeluarkan oleh gumpalan jaringan lemak pada bagian bawah lubang pernapasan lumba-lumba adalah ....
- A.
  
  Ultrasonik
- B.
  
  Audiosonik
- C.
  
  Intrasonik
- D.
  
  Infrasonik
Correct Answer
A. Ultrasonik

Explanation
Gumpalan jaringan lemak pada bagian bawah lubang pernapasan lumba-lumba menghasilkan gelombang bunyi dengan frekuensi yang sangat tinggi, melebihi batas pendengaran manusia. Gelombang bunyi dengan frekuensi di atas 20.000 Hz disebut ultrasonik. Oleh karena itu, jawaban yang tepat adalah ultrasonik.

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5.

Bunyi infrasonik memiliki frekuensi ....
- A.
  
  Kurang dari 20Hz
- B.
  
  Lebih dari 20Hz
- C.
  
  20-20000Hz
- D.
  
  Lebih dari 20000Hz
Correct Answer
A. Kurang dari 20Hz

Explanation
The correct answer is "kurang dari 20Hz" which means "less than 20Hz" in English. Infrasonic sound refers to sound waves that have a frequency below the range of human hearing, which is typically considered to be between 20Hz and 20,000Hz. Therefore, sounds with a frequency less than 20Hz are considered infrasonic.

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6.

Binatang yang dapat mendengar gelombang bunyi infrasonik adalah ....
- A.
  
  Gajah
- B.
  
  Kelelawar
- C.
  
  Singa
- D.
  
  Jangkrik
Correct Answer
D. Jangkrik

Explanation
Jangkrik dapat mendengar gelombang bunyi infrasonik karena memiliki organ pendengaran yang sensitif terhadap frekuensi rendah. Jangkrik menggunakan kemampuan ini untuk berkomunikasi dengan anggota lainnya dan mendeteksi ancaman dari predator. Gajah juga dapat mendengar gelombang bunyi infrasonik, tetapi jangkrik lebih spesifik dalam hal ini karena mereka menggunakan frekuensi rendah untuk berkomunikasi secara efektif. Kelelawar dan singa tidak memiliki kemampuan mendengar gelombang bunyi infrasonik.

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7.

Berdasarkan gambar di samping, satu getaran adalah gerak dari titik ....
- A.
  
  A - B - C - B - A
- B.
  
  A - B - C - B
- C.
  
  A - B -C
- D.
  
  A - B
Correct Answer
A. A - B - C - B - A

Explanation
The correct answer is A - B - C - B - A. This sequence represents a complete vibration cycle where the point moves from A to B, then to C, then back to B, and finally back to A. This pattern repeats itself, indicating a single vibration.

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8.

Gelombang yang mempunyai arah rambat dan arah getar tegak lurus adalah ....
- A.
  
  Gelombang longitudinal
- B.
  
  Gelombang Tranversal
- C.
  
  Gelombang elektromagnetik
- D.
  
  Gelombang Bunyi
Correct Answer
B. Gelombang Tranversal

Explanation
Gelombang tranversal adalah gelombang yang arah rambatnya tegak lurus terhadap arah getarnya. Dalam gelombang tranversal, partikel-partikel medium bergerak secara tegak lurus terhadap arah rambat gelombang. Contoh gelombang tranversal adalah gelombang pada tali yang digoyangkan secara horizontal.

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9.

Berikut merupakan contoh gelombang tranversal, kecuali ....
- A.
  
  Gelombang Tali
- B.
  
  Gelombang Bunyi
- C.
  
  Gelombang Air Laut
- D.
  
  Gelombang Dawai Gitar
Correct Answer
B. Gelombang Bunyi

Explanation
The correct answer is "Gelombang Bunyi." Gelombang Bunyi is not a transverse wave because it is a longitudinal wave. In a transverse wave, the particles of the medium vibrate perpendicular to the direction of the wave propagation. However, in a longitudinal wave like Gelombang Bunyi, the particles vibrate parallel to the direction of the wave propagation. Therefore, Gelombang Bunyi is not an example of a transverse wave.

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10.

Berikut merupakan fenomena yang berkaitan dengan sistem sonar, kecuali ....
- A.
  
  Pengukuran kedalaman laut
- B.
  
  Komunikasi pada lumba-lumba
- C.
  
  Percakapan manusia
- D.
  
  Ekolokasi pada kelelawar
Correct Answer
C. Percakapan manusia

Explanation
The given options are related to the sonar system. Sonar is a system that uses sound waves to detect and locate objects underwater. It is commonly used for measuring the depth of the sea, communication among dolphins, and echolocation in bats. However, human conversation is not directly related to the sonar system. Therefore, the correct answer is "Percakapan manusia" (human conversation).

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