

GETARAN, GELOMBANG DAN BUNYI
Presentation
•
Science
•
8th Grade
•
Easy
Meilani Wulandari
Used 5+ times
FREE Resource
6 Slides • 2 Questions
1
GETARAN
By: KADEK AYU MEILANI WULANDARI, S.Pd

2
Pernahkah kalian meraba tenggorokan kalian saat kalian berbicara??
Coba kalian praktekkan seperti gambar di samping!
3
Open Ended
Setelah kalian mempraktekkannya, apa yang kalian rasakan???
4
Pengertian Getaran
Melalui kegiatan tadi, kalian akan merasakan jika saat kalian bersuara maka tenggorokan kalian merasa bergetar atau ada getaran.
Selain kegiatan tadi, getaran juga dapat kalian amati saat kalian bermain ayunan.
5
Pengertian Getaran
Jadi, berdasarkan kedua kegiatan tadi, bisa disimpulkan getaran adalah gerakan bolak balik secara teratur melalui titik kesetimbangan.
Agar dapat memahami tentang getaran, perhatikan gambar di samping ini!
6
Pengertian Getaran
Sebuah bandul sederhana mula-mula diam pada kedudukan B. Kemudian bandul ditarik ke kedudukan A. Pada saat dilepas dari kedudukan A, maka bandul akan bergerak bolak balik secara teratur melalui titik A-B-C-B-A. Gerak bolak balik tersebut dihitung 1 getaran.
7
Multiple Choice
Perhatikan gambar di samping ini!
Jika bandul bergerak dari A-B-C-B-A-B-C, berapa jumlah getaran bandul tersebut?
setengah getaran
1 getaran
1 setengah getaran
2 getaran
8
Kesimpulan
Jadi getaran adalah gerakan bolak balik secara teratur melalui titik kesetimbangan.
GETARAN
By: KADEK AYU MEILANI WULANDARI, S.Pd

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