ke

IPA/kˈiː/
KK[kˈɛ]IPA/kˈɛ/

ke — 縮寫

1. a short written form of 'kinetic energy', referring to the energy an object has

1.縮寫B2
釋義

動能

物體因運動而具有的能量之縮寫

a short written form of 'kinetic energy', referring to the energy an object has when it is in motion.

例句

In the physics exam, students had to calculate the ke of a moving car from its mass and speed.

物理考試中，學生必須根據質量和速度計算行進中汽車的動能（ke）。

abbreviation used in exam/academic context

The formula for kinetic energy, ke = ½mv², is one of the first equations taught in mechanics.

動能公式 ke = ½mv² 是力學中最先教授的方程式之一。

standard formula: ke = ½mv²

文法句型

ke + (formula/equation)

用法筆記

The abbreviation is written in lowercase without a full stop in scientific writing. It appears most often in formulas, calculations, and physics exam questions rather than in general prose.

常見錯誤

❌The ke of the ball was 50 J.' (correct in formulas but capitalisation varies)
✅The ke of the ball was 50 J.
💡lowercase without a period is standard in physics notation.
❌KE' (when writing full words in a paragraph)
✅ke
💡lowercase is preferred in running text; uppercase KE is acceptable in titles or headings.