| 正面 | 4374.momentum 英 [mə'mentəm]美 [mo'mɛntəm] ![]() ![]() ![]() ![]() |
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| 背面 | ![]() ![]() ![]() ![]() ![]() 释义: 1. 动量表示为物体的质量和速度的乘积,因此动量是每个瞬间时间点的瞬间状态量。所以它名称是:moment => momentum.2. 动量(momentum)与冲量(impulse)的区别:动量是状态量,冲量是一个过程量。n. 势头;[物] 动量;动力;冲力 例句: 1. Demands for his dismissal have gathered momentum in recent weeks.最近几周,要求将他解职的呼声越来越高。 momentum 动力,势头来自拉丁语momentum,运动,变化,冲击,词源同moment,move. momentum (n.)1690s, scientific use in mechanics, "quantity of motion of a moving body," from Latin momentum "movement, moving power" (see moment). Figurative use dates from 1782." |
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