EN: Mechanical kinetic energy is the kinetic energy of the motion of objects (macroscopic motion you can observe). - It depends on mass and velocity: KE = 1/2 mv^2. - It is different from thermal energy, which is microscopic particle motion.

中文：机械动能（机械运动的动能）是可观察到的物体整体运动所具有的动能。 - 与质量和速度有关：KE = 1/2 mv^2。 - 它不同于热能；热能来自微观粒子的无规则运动。