# Gelombang Perhatikan Gambar Rambatan Gelombang Berikut

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Quiz Mata Pelajaran IPA tentang " Gelombang " berjumlah 20 butir. Untuk menjawab Quiz ini silakan tulis nama dan kelas dan nomor absen ( contoh : Ika Niko VIII C 22 ) pada kotak " Name " kemudian klik Start untuk memulai menjawab soal-soal pertanyaan. Untuk melanjutkan menjawab dari soal satu ke soal berikutnya klik next question. Jawablah secara urut hingga selesai. Setelah selesai menjawab semua soal anda akan memperoleh " certificate " , yang menerangkan perolehan skor / nilai dari jawabanmu, kemudian print / cetak certificate tersebut. Selamat belajar semoga sukses.

• 1.

### Pada saat merambat,  gelombang memindahkan ….

• A.

Medium

• B.

Energi

• C.

Massa

• D.

Frekuensi

B. Energi
Explanation
When a wave propagates, it transfers energy from one point to another. The medium through which the wave travels does not move with the wave, but the energy is transferred through the medium. Therefore, the correct answer is "Energi."

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• 2.

### Frekuensi gelombang dinyatakan dalam satuan....

• A.

Hertz

• B.

Desibel

• C.

Meter

• D.

Meter/sekon

A. Hertz
Explanation
The correct answer is "hertz" because frequency is a measure of how many cycles of a wave occur in one second. Hertz is the unit used to express frequency, specifically the number of cycles per second. Therefore, it is the appropriate unit to represent the frequency of a wave.

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• 3.

• A.

Transversal

• B.

Longitudinal

• C.

Elektromagnetik

• D.

Mekanik

B. Longitudinal
Explanation
The correct answer is longitudinal. Longitudinal waves are waves in which the vibrations of the particles are parallel to the direction of wave propagation. In other words, the oscillations occur in the same direction as the wave travels. This is in contrast to transversal waves, where the vibrations are perpendicular to the direction of wave propagation. Electromagnetic waves are a type of transversal wave, while mechanical waves can be either transversal or longitudinal.

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• 4.

### Perhatikan gambar ! Panjang gelombang dinyatakan oleh jarak . . . .

• A.

AB

• B.

AC

• C.

CD

• D.

AE

B. AC
Explanation
The correct answer is AC. In the given image, there are four lines AB, AC, CD, and AE. The question asks for the length of the wavelength. In physics, the wavelength is defined as the distance between two consecutive points of a wave that are in the same phase. Therefore, the length of the wavelength can be represented by the line AC, as it connects two consecutive points on the wave that are in the same phase.

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• 5.

• A.

Amplitudo

• B.

Periode

• C.

Frekuensi

• D.

Panjang Gelombang

C. Frekuensi
Explanation
The correct answer is "Frekuensi." Frekuensi refers to the number of waves that occur in one second. It is a measure of how many complete cycles of a wave occur in a given time period. In this context, it is asking about the number of waves that occur in one second, which is measured by frekuensi.

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• 6.

### Jarak yang di tempuh oleh gelombang dalam satu periode adalah ….

• A.

Amplitudo

• B.

Periode

• C.

Frekuensi

• D.

Panjang Gelombang

D. Panjang Gelombang
Explanation
The distance traveled by a wave in one period is referred to as the wavelength. Wavelength is the distance between two consecutive points in a wave that are in phase. It is usually represented by the symbol λ (lambda). Wavelength determines the size of the wave and is inversely related to its frequency. As the wavelength increases, the frequency decreases, and vice versa. Therefore, the correct answer is Panjang Gelombang, which means wavelength in Indonesian.

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• 7.

### Kamu mengetuk sebuah pintu. Kamu menimbulkan getaran yang bergerak melalui ....

• A.

• B.

Zat cair

• C.

Hampa

• D.

Explanation
When you knock on a door, the vibrations created by the impact travel through both solid objects (the door) and the surrounding air. This is because sound waves can travel through both mediums. Therefore, the correct answer is "Zat padat dan udara" (solid objects and air).

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• 8.

### Pada medium yang sama, cepat rambang gelombang yang melalui medium adalah....

• A.

Tetap

• B.

Berubah

• C.

Semakin cepat

• D.

Melambat

A. Tetap
Explanation
The statement suggests that the speed of the wave remains constant in the same medium.

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• 9.

### Berikut yang merupakan gelombang elektromagnetik adalah.....

• A.

Gelombang cahaya

• B.

Gelombang bunyi

• C.

Gelombang air

• D.

Gelombang listrik

A. Gelombang cahaya
Explanation
Gelombang cahaya adalah gelombang elektromagnetik yang terdiri dari partikel-partikel energi yang disebut foton. Gelombang cahaya memiliki sifat-sifat gelombang seperti refleksi, refraksi, dan interferensi. Gelombang cahaya dapat merambat melalui ruang hampa dan media transparan seperti udara, air, dan kaca. Gelombang cahaya juga memiliki spektrum yang terdiri dari berbagai panjang gelombang, mulai dari sinar inframerah hingga sinar ultraviolet.

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• 10.

### Berikut di bawah ini merupakan contoh gelombang transversal, kecuali ….

• A.

Gelombang air laut

• B.

Gelombang bunyi

• C.

Gelombang cahaya

• D.

B. Gelombang bunyi
Explanation
The given options consist of different types of waves. "Gelombang air laut" refers to ocean waves, "Gelombang bunyi" refers to sound waves, "Gelombang cahaya" refers to light waves, and "Gelombang pada tali" refers to waves on a string. Among these options, "Gelombang bunyi" is the only example of a longitudinal wave, while the others are examples of transverse waves.

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• 11.

### Perhatiakan gambar di bawah ini ! Yang merupakan panjang gelombang adalah jarak.....

• A.

A-C

• B.

A-G

• C.

B-F

• D.

B-E

C. B-F
Explanation
The correct answer is B-F. This is because in the given image, the distance between point B and point F represents the wavelength. The wavelength is defined as the distance between two consecutive points in a wave that are in phase with each other. Therefore, B-F is the correct answer as it represents the length of one complete wave.

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• 12.

### Hubungan antara gelombang (λ), frekuensi (f) dan cepat rambat gelombang (v) dinyatakan dengan persamaan....

• A.

V =  λ . f

• B.

V =  λ / f

• C.

V = f /  λ

• D.

F =  λ / v

A. V =  λ . f
Explanation
The equation v = λ . f represents the relationship between the velocity (v), wavelength (λ), and frequency (f) of a wave. This equation states that the velocity of a wave is equal to the product of its wavelength and frequency.

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• 13.

• A.

5 cm/s

• B.

10 cm/s

• C.

40 cm/s

• D.

80 cm/s

D. 80 cm/s
• 14.

### Suatu gelombang frekuensinya 25 Hz artinya ….

• A.

Dalam satu sekon terjadi 25 gelombang

• B.

Satu getaran terjadi dalam 25 sekon

• C.

Dalam satu sekon kecepatannya 25 m/s

• D.

Dalam satu sekon terjadi 25 bukit 25 lembah gelombang

A. Dalam satu sekon terjadi 25 gelombang
Explanation
The correct answer is "dalam satu sekon terjadi 25 gelombang." This is because the frequency of a wave is defined as the number of complete cycles or oscillations that occur in one second. So, if the frequency is 25 Hz, it means that there are 25 complete waves or oscillations happening in one second.

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• 15.

• A.

27 s

• B.

21 s

• C.

8 s

• D.

0.8 s

C. 8 s
Explanation
The given question states that there are 3 waves that occur within 24 seconds. To find the period, we divide the total time (24 seconds) by the number of waves (3). Therefore, the period is 8 seconds.

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• 16.

• A.

3 gelombang

• B.

2,5 gelombang

• C.

2 gelombang

• D.

1,5 gelombang

B. 2,5 gelombang
Explanation
The given statement states that there are 3 peaks and 2 valleys in a wave. In a complete wave cycle, there is one peak and one valley. Therefore, the total number of wave cycles can be calculated by adding the number of peaks and valleys and dividing it by 2. In this case, (3 + 2) / 2 = 2.5 waves.

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• 17.

### Perhatikan gambar rambatan gelombang berikut ! Apabila waktu yang ditempuh gelombang seperti pada gambar adalah 0,3 sekon, maka periode gelombang tersebut adalah . . .

• A.

0.2 S

• B.

0.9 S

• C.

2.0 S

• D.

5.0 S

A. 0.2 S
Explanation
The correct answer is 0.2 S. The period of a wave is the time it takes for one complete cycle of the wave to pass a given point. In this case, the wave takes 0.3 seconds to travel a distance, so the period would be shorter than that. The only option that is shorter than 0.3 seconds is 0.2 seconds, making it the correct answer.

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• 18.

### Panjang gelombang tali 2 m dan frekuensinya 6 Hz, maka cepat rambat gelombangnya adalah ….

• A.

1/3 m/s

• B.

3 m/s

• C.

8 m/s

• D.

12 m/s

D. 12 m/s
Explanation
The speed of a wave is determined by the product of its wavelength and frequency. In this question, the wavelength is given as 2 m and the frequency is given as 6 Hz. By multiplying these two values, we get a result of 12 m/s, which represents the speed at which the wave is propagating.

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• 19.

### Cepat rambat gelombang yang periodenya 10 s dan panjang gelombangnya 5 m adalah ….

• A.

50 m/s

• B.

15 m/s

• C.

2 m/s

• D.

0.5 m/s

D. 0.5 m/s
Explanation
The speed of a wave is determined by the formula v = λ/T, where v is the speed, λ is the wavelength, and T is the period. In this case, the period is given as 10 s and the wavelength is given as 5 m. Plugging these values into the formula, we get v = 5 m / 10 s = 0.5 m/s. Therefore, the correct answer is 0.5 m/s.

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• 20.

• A.

0.1 Hz

• B.

1.3 Hz

• C.

10 Hz

• D.

90 Hz