Penilaian 2 (Gelombang dan Bunyi)

Quiz
•
Physics
•
9th - 12th Grade
•
Hard
Ni'matul Jannah
Used 4+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 6 pts
Grafik tersebut menunjukkan perambatan gelombang tali. Jika periode gelombang 4 s, maka persaman gelombangnya adalah.....
2.
MULTIPLE CHOICE QUESTION
3 mins • 6 pts
Seekor tawon mendengung pada jarak 1 m, taraf intensitasnya 10 dB. Jika ada 100 ekor tawon mendengung pada jarak x, maka taraf intensitasnya 10 dB. Nilai x sama dengan.....
1 m
5 m
10 m
50 m
100 m
3.
MULTIPLE CHOICE QUESTION
3 mins • 6 pts
Bila dua sumber bunyi masing-masing dengan frekuensi 297 Hz dan 300 Hz berbunyi dengan serentak, maka akan timbul pelayangan bunyi dengan frekuensi.....
1 Hz
2 Hz
3 Hz
4 Hz
5 Hz
4.
MULTIPLE CHOICE QUESTION
3 mins • 6 pts
Seorang penonton pada lomba balap mobil mendengar bunyi (deru mobil) yang berbeda, ketika mobil mendekat dan menjauh rata-rata mobil balap mengeluarkan bunyi 800 Hz. Jika kecepatan gelombang bunyi di udara 340 m/s dan kecepatan mobil 20 m/s, maka frekuensi yang didengar saat mobil mendekat adalah.....
805 Hz
810 Hz
815 Hz
850 Hz
875 Hz
5.
MULTIPLE CHOICE QUESTION
3 mins • 6 pts
Intensitas bunyi X yang berjarak 1 m dari sumber adalah . Jika digunakan intensitas ambang dan titik Y berjarak 10 m dari sumber bunyi, maka perbandingan taraf intensitas di titik X dan Y adalah.....
1 : 3
3 : 2
3 : 5
5 : 1
5 : 3
6.
MULTIPLE CHOICE QUESTION
3 mins • 6 pts
Sepuluh buah terompet identik menghasilkan taraf intensitas bunyi 80 db ketika dimainkan di ruang konser. Jumlah terompet tersebut yang diperlukan agar menghasilkan taraf intensitas bunyi 90 db adalah.....
100
70
40
20
10
7.
MULTIPLE CHOICE QUESTION
3 mins • 6 pts
Suatu sumber bunyi memancarkan daya akustik 4π Kw. Maka taraf intensitas bunyi pada jarak 10 meter adalah.....
100 dB
112 dB
120 dB
130 dB
150 dB
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