V2EX electromagnetic force

Electromagnetic Force

Definition / 定义

电磁力:由电荷及其运动(电流、磁场)产生的基本相互作用之一,统摄电力磁力,决定了原子、分子结构以及光与物质的许多性质。(在更基础的物理框架中,它与弱相互作用共同构成“电弱相互作用”。)

Pronunciation / 发音

/lktrmntk fs/

Examples / 例句

Electromagnetic force makes a magnet stick to the fridge.
电磁力让磁铁吸在冰箱上。

Because electromagnetic force binds electrons to nuclei, it largely determines the shapes and chemical behavior of matter.
由于电磁力把电子束缚在原子核周围,它在很大程度上决定了物质的形态与化学性质。

Etymology / 词源

electromagneticelectro-(“电”,源自希腊语 ēlektron,意为“琥珀”,古人观察到琥珀摩擦后会吸引轻小物体)与 magnetic(“磁的”,源自希腊语 magnētis,与古地名“马格尼西亚”有关,因当地出产天然磁石)组合而成;force 来自拉丁语 fortis(“强的”)相关词族,表示“力、作用力”。

Related Words / 相关词

Literary Works / 文学作品

  • A Brief History of Time(Stephen Hawking)中以通俗方式讨论基本力,包含对电磁力的介绍与对比。
  • The Feynman Lectures on Physics(Richard P. Feynman 等)系统讲解电磁学与电磁力在自然界中的作用。
  • Introduction to Electrodynamics(David J. Griffiths)作为经典教材,频繁使用 “electromagnetic force” 讨论电磁相互作用。
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