Ulangan Harian Getaran Dan Gelombang
Questions and Answers
- 1.
Perhatikan gambar di bawah ini! Amplitudo getaran ditunjukkan oleh . . .
- A.
A
- B.
CB
- C.
AB
- D.
BC
Correct Answer
D. BCExplanation
The correct answer is BC. In the given image, BC represents the amplitude of the vibration. Amplitude is the maximum displacement or distance from the equilibrium position of an oscillating object. In this case, BC represents the maximum distance the object moves from its equilibrium position during each cycle of vibration.Rate this question:
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- 2.
Sebuah getaran menghasilkan frekuensi 10 Hz. Periode getarannya adalah ....
- A.
0,01 sekon
- B.
0,1 sekon
- C.
0,02 sekon
- D.
0,05 sekon
Correct Answer
B. 0,1 sekonExplanation
The correct answer is 0.1 second because the period of a vibration is the time it takes for one complete cycle of the vibration. Since the given frequency is 10 Hz, which means 10 cycles per second, the period can be calculated by taking the reciprocal of the frequency, which is 1/10 or 0.1 second.Rate this question:
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- 3.
Sebuah bandul sederhana bergetar 10 kali dalam waktu 2 sekon. Frekuensi getaran tersebut adalah ....
- A.
5 Hz
- B.
10 Hz
- C.
20 Hz
- D.
0,2 Hz
Correct Answer
A. 5 HzExplanation
The given question states that a simple pendulum vibrates 10 times in 2 seconds. To find the frequency, we need to divide the number of vibrations (10) by the time taken (2 seconds). Therefore, the frequency of the vibrations is 10/2 = 5 Hz.Rate this question:
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- 4.
Dua buah ayunan A dan B memiliki panjang tali yang sama. Jika ayunan pertama digetarkan dengan simpangan empat kali ayunan kedua, maka ....
- A.
Periode A = 4 periode B
- B.
Periode A = ¼ kali periode B
- C.
Periode A = periode B
- D.
Periode A = 2 periode B
Correct Answer
B. Periode A = ¼ kali periode BExplanation
The correct answer states that the period of swing A is one-fourth (¼) of the period of swing B. This means that swing A takes less time to complete one full swing compared to swing B.Rate this question:
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- 5.
Perhatikan gambar di bawah ini brdasarkan gambar di atas,lembah gelombang ditunjukan oleh...
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
D. DExplanation
Based on the given image, the correct answer is D. However, without the image or any additional information, it is not possible to provide a specific explanation for why D is the correct answer.Rate this question:
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- 6.
Berdasarkan medium perambatannya, gelombang dibedakan menjadi ....
- A.
Gelombang transversal dan gelombang longitudinal
- B.
Gelombang mekanik dan gelombang elektromagnetik
- C.
Gelombang bunyi dan gelombang cahaya
- D.
Gelombang laut dan gelombang Bumigelombang laut dan gelombang Bumi
Correct Answer
B. Gelombang mekanik dan gelombang elektromagnetikExplanation
The correct answer is gelombang mekanik dan gelombang elektromagnetik. Gelombang dapat dibedakan berdasarkan medium perambatannya menjadi gelombang mekanik, yang membutuhkan medium untuk merambat, dan gelombang elektromagnetik, yang dapat merambat tanpa medium. Gelombang bunyi dan gelombang cahaya adalah contoh gelombang mekanik dan gelombang elektromagnetik secara berurutan. Gelombang laut dan gelombang Bumi tidak mencakup semua jenis gelombang yang ada.Rate this question:
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- 7.
Sebuah slinky digetarkan selama 15 sekon, menghasilkan 3 rapatan dan 3 renggangan. Periode gelombang pada slinky adalah . . . .
- A.
5 sekon
- B.
90 sekon
- C.
2,5 sekon
- D.
45 sekon
Correct Answer
A. 5 sekonExplanation
The period of a wave is the time it takes for one complete cycle of the wave to occur. In this case, the slinky is vibrating for 15 seconds and completing 3 cycles (3 compressions and 3 rarefactions). Therefore, each cycle takes 15 seconds / 3 cycles = 5 seconds. So, the period of the wave is 5 seconds.Rate this question:
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- 8.
Sebuah gelombang mempunyai frekuensi 10 Hz dan panjang gelombangnya 20 m. Kecepatan gelombang tersebut adalah ....
- A.
100 m/s
- B.
200 m/s
- C.
0,5 m/s
- D.
2 m/s
Correct Answer
B. 200 m/sExplanation
The speed of a wave is determined by the product of its frequency and wavelength. In this case, the given wave has a frequency of 10 Hz and a wavelength of 20 m. Multiplying these values together gives us a speed of 200 m/s.Rate this question:
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- 9.
Berikut merupakan pemanfaatan gelombang dalam teknologi,kecuali...
- A.
Satelit
- B.
PLTN
- C.
Sel Surya
- D.
Eksplorasi Minyak dan Gas
Correct Answer
B. PLTNExplanation
Pemanfaatan gelombang dalam teknologi mencakup penggunaan gelombang elektromagnetik untuk berbagai keperluan, seperti komunikasi melalui satelit, penggunaan energi matahari melalui sel surya, dan eksplorasi minyak dan gas menggunakan gelombang seismik. Namun, PLTN (Pembangkit Listrik Tenaga Nuklir) bukanlah pemanfaatan gelombang, melainkan menggunakan reaksi nuklir untuk menghasilkan energi listrik.Rate this question:
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- 10.
Gelombang air laut merupakan contoh gelombang...
- A.
Gelombang electromagnet
- B.
Gelombang Listrik
- C.
Gelombang mekanik
- D.
Gelombang statis
Correct Answer
C. Gelombang mekanikExplanation
The correct answer is "Gelombang mekanik". This is because the question is asking for an example of a type of wave, and "Gelombang mekanik" refers to mechanical waves, which are waves that require a medium to travel through, such as water or air. Electromagnetic waves, electrical waves, and static waves are not examples of mechanical waves.Rate this question:
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- 11.
Http://www.youtube.com/watch?v=DX5VXGmdnAg video ini mengungkapkan tentang perekaman getaran dalam mengetahui kekuatan dan arah gempa lewat gambaran gerakan bumi
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The video explains how vibrations are recorded to determine the strength and direction of an earthquake through the movement of the earth. This suggests that the statement "video ini mengungkapkan tentang perekaman getaran dalam mengetahui kekuatan dan arah gempa lewat gambaran gerakan bumi" is true.Rate this question:
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- 12.
Frekuensi adalah simpangan getaran paling besar
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement "frekuensi adalah simpangan getaran paling besar" translates to "frequency is the largest deviation of vibrations." This statement is incorrect. Frequency refers to the number of vibrations or oscillations per unit of time, and it does not represent the magnitude or size of the vibrations. Therefore, the correct answer is false.Rate this question:
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- 13.
Semakin banyak waktu yang dibutuhkan untuk melakukan getaran, maka frekuensi getaran akan semakin besar
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The given statement is false. The correct explanation is that the frequency of vibrations is inversely proportional to the time taken to complete one vibration. This means that as the time taken to complete one vibration increases, the frequency of vibrations decreases, not increases.Rate this question:
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- 14.
Sinar-x mrupakan salah satu contoh getaran eektromagnetik
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is stating that X-ray is an example of electromagnetic radiation. This is true because X-rays are a form of electromagnetic radiation with high energy and short wavelengths. They are produced by the interaction of fast-moving electrons with matter. X-rays are commonly used in medical imaging to visualize the internal structures of the body and in various other applications such as security screening and industrial testing.Rate this question:
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- 15.
Gelombang stasioner terjadi karena perpaduan antara gelombang datang dan gelombang pantul yang memiliki frekuensi dan panjang gelombang sama.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Stacioner waves occur when incoming waves and reflected waves combine with the same frequency and wavelength. This combination results in a standing wave pattern where certain points appear to be stationary. Therefore, the given statement is true.Rate this question:
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- 16.
perhatikan gambar di atas. benda mengalami 1 kali getaran apabila benda mengalami perpindahan dari mana?
Correct Answer
A-D-O-C-B-C-O-D-A
O-C-B-C-O-D-A-D-O
B-C-O-D-A-D-O-C-B
O-D-A-D-O-C-B-C-OExplanation
The correct answer is O-D-A-D-O-C-B-C-O. In the given sequence, the object experiences one vibration when it moves from O to D. This is because the object starts at position O, moves to position D, and then returns to position O. The other sequences do not show this specific movement pattern.Rate this question:
- 17.
Sebuah lebah dapat menggerakkan sayapnya 50 kali setiap detiknya. berapa periode getaran sayap lebah tersebut?
Correct Answer
0,02 sekon
0,02 s
0,02
1/50 sekon
2/100 sekonExplanation
The correct answer is 0,02 sekon, 0,02 s, 0,02, 1/50 sekon, 2/100 sekon. This is because the question asks for the period of the bee's wing vibration. The period is the time it takes for one complete cycle of vibration. Since the bee's wing moves 50 times per second, the period would be 1/50 sekon or 2/100 sekon, which is equal to 0,02 sekon or 0,02 s.Rate this question:
- 18.
Berdasarkan amplitudonya, gelombang dapat dibedakan menjadi 2, yaitu gelombang ... dan gelombang ...
Correct Answer
berjalan dan diam
berjalan dan stasioner
stasioner dan berjalan
diam dan berjalanExplanation
Based on the amplitude, waves can be classified into two types, which are waves that are moving (berjalan) and waves that are stationary (diam). Additionally, waves that are moving can also be further classified into waves that are stationary (stasioner) and waves that are moving. Therefore, the correct answer is "berjalan dan diam, berjalan dan stasioner, stasioner dan berjalan, diam dan berjalan".Rate this question:
- 19.
berdasarkan gambar di atas, 2 panjang gelombang didefiisikan sebagai
Correct Answer
A-B-C-D-E-F-G-H-I
a-b-c-d-e-f-g-h-i
A-b'-C-d'-E-f'-G-h'-IExplanation
Based on the given image, the two sets of wave lengths are defined as A-B-C-D-E-F-G-H-I and a-b-c-d-e-f-g-h-i. Additionally, there is another set defined as A-b'-C-d'-E-f'-G-h'-I.Rate this question:
- 20.
Pada seutas tali merambat gelombang dengan frekuensi 10 Hz. Jika jarak yang ditempuh dalam satu periode adalah 20 cm, tentukan cepat rambat gelombang tali tersebut.
Correct Answer
0,2 M/S
0,2 m/s
0,2 meter/sekon
0,2 meter per sekonExplanation
The correct answer is 0,2 m/s. The speed of a wave can be calculated by dividing the distance traveled in one period by the time taken for that period. In this case, the distance traveled in one period is given as 20 cm, which is equal to 0.2 meters. Since the frequency is given as 10 Hz, which means there are 10 periods in one second, the time taken for one period is 1/10 seconds. Dividing the distance by the time gives us a speed of 0.2 m/s.Rate this question:
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