觀察氣泡的上升是有加速度
10 months ago
32
觀察氣泡的上升是有加速度
請注意看下方連結影片中的左右兩邊,左邊是我拿罐子裝水吹氣做實驗,右邊是用電腦動畫程式模擬加速度,你可以發現氣泡與粒子的上升都以【加速度】在向上位移。這就證明浮力會使氣泡上升產生【加速度】。
浮力可以視為氣泡所排開等體積的水對氣泡施加的反作用力。水壓大時氣泡被壓縮地小,水壓變小氣泡則變大。右邊的電腦模擬則沒有做到這氣泡大小的變化,但是兩邊都有明顯的加速度。
https://drive.google.com/file/d/1F4FQyb4zX7OMEhBuZtPw03XsEwGGcOkA/view?usp=sharing
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