动能

動能
dòngnéng
noun #45,895

Meanings

  1. 1 kinetic energy (physics)
  2. 2 momentum; driving force; impetus

Examples

HSK 7-9
Wùtǐ de dòngnéng yǔ zhìliàng hé sùdù de píngfāng chéngzhèngbǐ.
An object's kinetic energy is proportional to its mass and the square of its velocity.
HSK 7-9
Shùzì jīngjì wèi gāozhìliàng fāzhǎn zhùrù xīn dòngnéng.
The digital economy is injecting new momentum into high-quality development.

Tips

usage
Two registers: in physics class it's strict 'kinetic energy'; in economic news it's a stock metaphor - 新动能 'new growth drivers', 释放动能 'release impetus', 转换动能 'shift the engine of growth'.
memory
'movement' + 'energy' → energy of movement. Mirrors the English 'kinetic' (Greek kinētikos = moving).

Stroke Order

dòng
néng