Standard 4 · 科学 (Science)

声音

聲音這單元常考聲源震動與傳播介質的觀念，同學最容易在解釋聲音如何穿過不同物質時混淆概念。只要多做練習題掌握聲波特性與反射規律，你就能輕鬆應對課後評估中的各類圖表分析題。

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