momentum
英 [məˈmen.təm]
美 [məˈmen.t̬əm]
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。
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.
- 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。
- 2. The fight for his release gathers momentum each day.
- 争取使他获释的斗争声势日益加强。
- 3. The sledge gained momentum as it ran down the hill.
- 雪橇从山上下冲时的动力越来越大.
- 4. The historical tide is surging forward with great momentum.
- 历史洪流气势磅礴,奔腾向前.
- 5. The style prevails and picks up momentum.
- 这式样很流行,而且越来越流行.