V2EX magnetic force

Magnetic Force

Definition / 释义

magnetic force磁力;由磁体、磁场或运动电荷产生的力,常表现为对某些材料(如铁、镍、钴)的吸引或排斥,也可作用于带电粒子(与磁场相关)。

Pronunciation / 发音(IPA)

/mntk frs/

Examples / 例句

The magnetic force pulls the paper clip toward the magnet.
磁力把回形针吸向磁铁。

In a strong magnetic field, the magnetic force can bend the path of moving charged particles.
在强磁场中,磁力可以使运动的带电粒子的轨迹发生弯曲。

Etymology / 词源

magnetic 源自希腊语 *magnētis (lithos)*,意为“马格尼西亚之石”(指天然磁石),经拉丁语与法语演变进入英语;force 来自拉丁语 fortis(“强的”)及其在古法语中的形式,逐渐形成“力量、作用力”的含义。合在一起,magnetic force 即“由磁性产生的作用力”。

Related Words / 相关词汇

In Literature / 文学与著作中的用例

  • William Gilbert,《De Magnete》(1600):早期系统讨论磁现象与地磁的经典著作。
  • Richard P. Feynman,《The Feynman Lectures on Physics》:以直观方式讲解磁场与力的关系(含磁力与带电粒子运动)。
  • David J. Griffiths,《Introduction to Electrodynamics》:电磁学教材中频繁使用“magnetic force”讨论磁场对电流与电荷的作用。
  • Stephen Hawking,《A Brief History of Time》:在通俗语境中涉及基本力与场的概念(可能提及磁力/电磁力)。
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