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rest mass

/ˈrest mæs/

翻译: 物体相对于观察者静止时具有的质量,与随速度增加的相对论质量不同。这是物理学中的一个基本概念,尤其在爱因斯坦的相对论中。

1 个条目

phrase

/ˈrest mæs/C1formalscientific
  • zh物体相对于观察者静止时具有的质量,与随速度增加的相对论质量不同。这是物理学中的一个基本概念,尤其在爱因斯坦的相对论中。

The mass of a particle or object when it is at rest relative to an observer, as opposed to relativistic mass which increases with velocity. A fundamental concept in physics, particularly in Einstein's theory of relativity.

  1. Invariant massC2formal

    The mass of a particle as measured when it is at rest relative to the observer; a fundamental property in physics.

    zh静质量

    • The rest mass of an electron is approximately 9.11 × 10⁻³¹ kilograms.
    • Photons have no rest mass, which allows them to travel at the speed of light.
    • In special relativity, the rest mass of an object remains constant regardless of its motion.