
Latihan Getaran dan Gelombang
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Easy
Silvia Saragih
Used 2+ times
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102 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gerak bolak-balik suatu benda di sekitar titik kesetimbangan
Getaran
Gelombang
Bunyi
Periodik
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Simpangan terjauh dalam suatu getaran atau gelombang
frekuensi
perioda
amplitudo
lambda
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Satuan yang digunakan untuk menyatakan frekuensi adalah….
Persen
Hertz/sekon
Hertz
Sekon
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah benda dapat bergetar sebanyak 1000 kali dalam waktu 25 sekon. Frekuensi getaran benda tersebut sebesar…. Hz
40
25000
0,4
0,025
Answer explanation
Untuk menghitung frekuensi getaran benda, kita dapat menggunakan rumus:
Frekuensi(f)=WaktuJumlah getaran
Dari soal, diketahui:
Jumlah getaran = 1000 kali
Waktu = 25 sekon
Maka, frekuensi getaran benda tersebut adalah:
f=251000
f=40 Hz
Jadi, frekuensi getaran benda tersebut sebesar 40 Hz
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah getaran menghasilkan frekuensi 50 Hz. Periode getarannya adalah ….
0,5 s
0,2 s
0,02 s
0,05 s
Answer explanation
Untuk mencari periode getaran, kita dapat menggunakan rumus yang merupakan kebalikan dari rumus frekuensi:
Periode(T)=Frekuensi(f)1
Diketahui frekuensi getaran (f) adalah 50 Hz. Maka, periode getarannya adalah:
T=501 sekon
T=0,02 sekon
Jadi, periode getarannya adalah 0,02 sekon.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan Gambar, satu getaran adalah
A - B - C
A - B - C - B - A
A - B - C - B
B - C - b
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1/2 getaran bandul adalah gerakan
A-B-C-B
B-C-B
B-A-C
B-C-B-A
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