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Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 已解決
Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 已解決 
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國中理化壓力2題
Aug 23rd 2013, 07:08

5. (C) c = d > a > b

在同一液體中，深度愈深，所受壓力愈大。
c 和 d 的深度最深，故所受壓力相等，且最大。
b 的深度最淺，故所受壓力最小。

*****
9. (C) 30

壓力 = 力/面積

當左右兩邊液面保持等高：
左邊液面所受壓力 = 右邊液面所受壓力
(1200 + 100) / 10 = (小孩重 + 100) / 1
小孩重 = 30 kgw

參考資料 胡雪

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