V2EX recoil energy

Recoil Energy

定义 Definition

recoil energy反冲能量/后坐能量。指物体在发射(如枪械射击、火箭喷射)或发生相互作用(如核反应、粒子散射)时,由于动量守恒而产生的“向后反冲”所对应的能量;在核物理中也常指原子核/原子因吸收或发射粒子、光子而获得的动能。

发音 Pronunciation (IPA)

/rkl ndi/

例句 Examples

Recoil energy can make a light rifle feel harder to control.
反冲能量会让轻型步枪感觉更难控制。

In neutron scattering experiments, recoil energy affects the measured spectrum and must be accounted for in the analysis.
在中子散射实验中,反冲能量会影响测得的谱线,分析时必须将其纳入考虑。

词源 Etymology

recoil 来自法语 reculer(“后退、退缩”),由 *re-*(“向后”)+ cul(“臀部/后部”)相关词根演变而来,引申为“反冲、后坐”。energy 来自希腊语 energeia(“活动、作用力”)。合起来 recoil energy 即“由反冲产生/体现的能量”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • The Feynman Lectures on Physics(《费曼物理学讲义》)在动量守恒、碰撞与散射的讨论中会涉及反冲与能量分配。
  • Introductory Nuclear Physics(Kenneth S. Krane,《核物理导论》)常用 “recoil energy” 描述核衰变与反应后产物的反冲能量。
  • Classical Mechanics(Herbert Goldstein 等,《经典力学》相关章节)在碰撞、两体问题与动量能量关系中可见该术语的使用。
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