搜尋標籤: "frequency"
Standing Waves on a String (Chinese and English subtitles available)Standing wave is produced when two waves of the same frequency moving in opposite directions interface. Through experimental videos, this resource will study the characteristics of…
jackieyclee edb-jackieyclee
0 個讚
57 次播放
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Sound and the Ear (English subtitles available)This programme is divisible into 7 segments as follows: 1. Creation of Sound The film uses the performance of various musical instruments in an orchestra as a clue to introduce the key question…
ronson@hkecl.net
0 個讚
311 次播放
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聲音和耳本節目分成以下七個部分： 1. 聲音的發生 以管絃樂團在音樂會上的器樂演奏為引子，提出「樂器是怎樣產生聲音的？」這個焦點問題。隨後以小提琴、鋼琴、鼓和鈸為例，顯示聲音的來源是物體的振動。 2.…
ronson@hkecl.net
0 個讚
2,559 次播放
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Statistical diagrams and graphs (English subtitles available)Two teachers of a tutorial class conduct an analysis of the students’ performance in Chinese, English and Mathematics in order to evaluate the effectiveness of the course. They first organize…
ronson@hkecl.net
0 個讚
430 次播放
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