
FENOMENA & APLIKASI PANTULAN GELOMBANG BUNYI
Quiz
•
Science
•
8th Grade
•
Medium
Salmia Saling
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gema terhasil apabila gelombang bunyi memantul kembali kepada pendengar dari suatu permukaan keras. Bunyi yang dipantulkan ini menyerupai bunyi asal tetapi mengambil sedikit masa untuk sampai ke telinga pendengar. Betul atau salah?
Betul
Salah
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ultrabunyi merupakan sejenis gelombang bunyi yang berfrekuensi 20000 Hz ke atas.
Betul
Salah
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Frekuensi bunyi yang boleh didengar oleh manusia terhad kepada
20 Hz hingga 30,000 Hz
20 Hz hingga 20,000 Hz
20 Hz hingga 10,000 Hz
20 Hz hingga 15,000 Hz
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Pilih alat-alat yang direkabentuk untuk mengatasi had pendengaran manusia.
Stetoskop
Kanta pembesar
Pembesar suara
Alat bantu pendengaran
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Tandakan 3 contoh aplikasi pantulan gelombang bunyi.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Haiwan manakah yang dapat menghasilkan gelombang ultrabunyi yang berfrekuensi tinggi?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah menunjukkan eksperimen untuk menunjukkan satu sifat bunyi.
Antara berikut, yang manakah menggunakan sifat bunyi yang dikaji dalam eksperimen itu?
Menyanyi di atas pentas
Menentukan kedalaman laut
Berlari dengan menggunakan kasut spike
Menggunakan alat bantu pendengaran
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