V2EX momentum

Momentum

释义 Definition

“Momentum” 常指动量(物理学中表示运动量的大小与方向,= 质量 × 速度),也常引申为发展势头/推进力(事情持续向前发展的力量)。该词还有较少见的其他用法,但以上最常用。

发音 Pronunciation (IPA)

/momntm/

例句 Examples

The car gained momentum as it rolled downhill.
汽车下坡时速度越来越快,动量增大。

After the first success, the project built momentum and attracted more support.
首次成功之后,这个项目形成了势头,吸引了更多支持。

词源 Etymology

“Momentum” 来自拉丁语 momentum,原意与“运动、推动、短暂的时间点(moment)”有关,后来在英语中既用于物理学的“动量”,也用于比喻意义上的“势头、推动力”。

相关词 Related Words

文学作品中的用例 Literary Works

  • Isaac Newton《Philosophi Naturalis Principia Mathematica》(《自然哲学的数学原理》):在经典力学语境中讨论与“动量”相关的概念(历史上常与“运动量”表述相连)。
  • James S. A. Corey《Leviathan Wakes》(《利维坦觉醒》):在太空航行与惯性运动的描写中常出现与“动量/推进”相关的表达与语境。
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