- 1
The act of speeding up — how quickly something's speed increases. People use it for cars (a car's acceleration from 0 to 100), and more loosely for any process that is speeding up, like 'an acceleration in the number of people learning online.' In physics, it's a precise term for the rate at which speed changes over time.
加速;(物理)加速度
組成ac- (a form of 'ad-,' meaning toward) + celer (Latin for fast/swift) + -ation (turns it into a noun for the action)
同家族的字
- acceleratethe verb this noun comes from
原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
accelerationnoun/əkˌsɛl.əˈɹeɪ.ʃən/
- 1
The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.
- A falling body moves toward the earth with an acceleration of velocity.
- If you hear flutter on acceleration, it is dangerous surge.
- 2
The amount by which a speed or velocity increases (and so a scalar quantity or a vector quantity).
- The boosters produce an acceleration of 20 metres per second per second.
- A period of social improvement, or of intellectual advancement, contains within itself a principle of acceleration […]
- 3
natural-sciencesphysical-sciencesphysicsThe change of velocity with respect to time (can include deceleration or changing direction).
- 4
The advancement of students at a rate that places them ahead of where they would be in the regular school curriculum.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。