Chủ đề nguồn âm
Flashcard
•
Physics
•
7th Grade
•
Practice Problem
•
Hard
Wayground Content
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5 questions
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1.
FLASHCARD QUESTION
Front
Âm thanh khi bác bảo vệ gõ trống phát ra từ đâu?
Back
Mặt trống
2.
FLASHCARD QUESTION
Front
Âm phát ra trầm khi tần số thấp.
Back
Khi âm phát ra với tần số thấp.
3.
FLASHCARD QUESTION
Front
Vật A dao động tần số 50Hz, Vật B tần số 70Hz. Vật nào dao động nhanh hơn?
Back
Vật B
4.
FLASHCARD QUESTION
Front
Âm thanh của muỗi và ong: muỗi "vo ve", ong "vù vù". Giải thích đúng?
Back
Tần số dao động cánh muỗi lớn hơn ong.
5.
FLASHCARD QUESTION
Front
Nhạc cụ phát âm nhờ cột không khí dao động:
Back
Khèn
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