Last Updated
：2026/01/12
反発係数
Hiragana
はんぱつけいすう
Noun
Japanese Meaning
剛体同士の衝突において、衝突前後の相対速度の比で表される値。衝突の「弾みやすさ」やエネルギー損失の程度を示す物理量。 / 二つの物体が衝突した際の運動エネルギーがどの程度保存されるかを表す係数。1に近いほど弾性衝突、0に近いほど非弾性衝突であることを示す。
Easy Japanese Meaning
ものどうしがぶつかったときのはねかえりやすさをあらわす数
Chinese (Simplified) Meaning
恢复系数 / 碰撞恢复系数 / 弹性恢复系数
Chinese (Traditional) Meaning
彈性碰撞中，分離後相對速度與碰撞前相對速度之比的係數 / 表示物體碰撞彈性與恢復程度的數值指標
Korean Meaning
물체가 충돌할 때 반발(탄성) 정도를 나타내는 계수 / 충돌 후 두 물체의 상대속도의 비를 나타내는 값
Indonesian
koefisien yang menyatakan tingkat elastisitas tumbukan antara dua benda / rasio kecepatan relatif setelah terhadap sebelum tumbukan pada garis tumbukan / ukuran kemampuan benda memantul kembali setelah bertumbukan
Vietnamese Meaning
hệ số phục hồi (khi va chạm) / hệ số đàn hồi va chạm / tỷ số giữa vận tốc tách ra và vận tốc tiếp cận khi va chạm
Tagalog Meaning
koepisyente ng restitusyon sa banggaan / sukat ng pagtalbog matapos banggaan / bahagdan ng pagbawi ng bilis sa banggaan
Sense（1）
(physics) coefficient of restitution
（ canonical ）
（ romanization ）
（ hiragana ）
Quizzes for review
See correct answer
反発係数
See correct answer
The coefficient of restitution of this ball is 0.8.
See correct answer
このボールの反発係数は0.8です。
Japanese - English
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