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範例:力學能守恆與自由落體[97學測]

在水平地面上有一球落地反彈又落地,週而復始。前後兩次反彈又落地的過程之最大高度比為1:0.64。假設空氣阻力可以忽略,則下列有關前後兩次反彈又落地過程的敘述,哪幾項正確?(應選二項)(A)最大動能的比例為1:0.64 (B)「最大位能- 最小位能」的比例為1:0.64 (C)最大力學能的比例為1:0.8 (D)最大速度量值的比例為1:0.64。[97學測]

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Posted in 歷屆學測(推甄)考題, 能量的轉換與守恆, 重力位能.

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