elastic collision

Noun

(physics) A collision in which kinetic energy is conserved.

Japanese Meaning

弾性衝突：運動エネルギーが保存される衝突現象（物理学の概念）

In an ideal elastic collision between two billiard balls, kinetic energy is conserved while momentum is exchanged.

理想的な弾性衝突では、二つのビリヤード球の間で運動量が交換される一方で、全運動エネルギーは一定に保たれます。

Sense（1）

(physics) A collision in which kinetic energy is conserved.

elastic collisions

（ plural ）