問題詳情
1. 下列敘述何者正確?
(A) 物體運動所沿的軌跡稱為「位移( displacement)」
(B) 物體運動起點至終點的位置變化量,亦即變化前後兩位置間的直線長度稱為「路徑( path )」
(C) 運動體在單位時間內的位移變化量稱為「速率(speed )」
(D) 運動體在單位時間內的速度變化量稱為「加速度( acceleration )」
(A) 物體運動所沿的軌跡稱為「位移( displacement)」
(B) 物體運動起點至終點的位置變化量,亦即變化前後兩位置間的直線長度稱為「路徑( path )」
(C) 運動體在單位時間內的位移變化量稱為「速率(speed )」
(D) 運動體在單位時間內的速度變化量稱為「加速度( acceleration )」
參考答案
答案:D
難度:適中0.533981
統計:A(12),B(9),C(23),D(55),E(0)
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