╲⎝⧹aaaaa⧸⎠╱Giải vth khtn 7 chương IV âm thanh

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ﷺGiải vth khtn 7, soạn vở thực hành khoa học tự nhiên 7 KNTT | Chương IV. Âm thanh

Bình chọn:

4.9 trên 7 phiếu

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Bài 12. Sóng âm
Tìm thêm ví dụ về dao động. ⛦ Xem chi tiết
Bài 13. Độ to và độ cao của âm
Hãy so sánh biên độ của sóng âm trong Hình 13.2b và 13.2c SGK KHTN 7, từ đó rút ra mối quan hệ giữa biên độ của sóng âm và biên độ dao động của nguồn âm. 𒆙 Xem chi tiết

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Bài 14. Phản xạ âm, chống ô nhiễm tiếng ồn
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Bài 12. Sóng âm

Bài 13. Độ to và độ cao của âm

Bài 14. Phản xạ âm, chống ô nhiễm tiếng ồn