Materi Getaran, Gelombang dan Bunyi
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Bimbel StudioSembilan
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah benda dikatakan bergetar jika
Berayun-ayun
Bergerak bolak – balik melalui titik keseimbangan
Bererak dalam lingkaran
Bergerak naik turun
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jika sebuah bandul yang digetarkan menyebabkan bandul tersebut bolak-balik hingga 15 kali getaran dalam waktu 30 detik. Maka periode getaran bandul tersebut adalah
1 s
2 s
3 s
4 s
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Gelombang bunyi dari suatu sumber memiliki cepat rambat 340 m/s. Jika frekuensi gelombang bunyi adalah 500 Hz, maka panjang gelombangnya adalah
0,68 m
1 m
0,78 m
1,68 m
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jika sebuah benda bergetar dengan frekuensi 8 Hz, maka dalam 2 sekon benda tersebut dapat bergetar sebanyak
3 kali
4 kali
16 kali
32 kali
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Bandul ayunan sesuai gambar bergerak dari A ke C, memerlukan waktu 1/40 detik.
Periode ayunan tersebut adalah....detik
1/10
1/20
1/30
1/40
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Untuk mengukur kedalaman laut, gelombang bunyi ditembakkan tegak lurus ke dalam laut. Jika pantualan gema diterima setelah 2 sekon, sedangkan cepat rambat bunyi 1.400 m/s maka kedalaman lautnya adalah
140 m
700 m
1400 m
2800 m
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Periode suatu bunyi 0,08 detik maka bunyi tersebut termasuk
Audiosonik
Infrasonik
Ultrasonik
Supersonik
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