| 单词 | kinetic energy |
| 释义 | kinetic energyuncountable noun In physics, kinetic energy is the energy that is produced when something moves. [technical]kinetic energy in British Englishnoun the energy of motion of a body, equal to the work it would do if it were brought to rest. The translational kinetic energy depends on motion through space, and for a rigid body of constant mass is equal to the product of half the mass times the square of the speed. The rotational kinetic energy depends on rotation about an axis, and for a body of constant moment of inertia is equal to the product of half the moment of inertia times the square of the angular velocity. In relativistic physics kinetic energy is equal to the product of the increase of mass caused by motion times the square of the speed of light. The SI unit is the joule but the electronvolt is often used in atomic physics Symbols: Ek, K, T. Abbreviation: KEkinetic energy in American English the energy of a body that results from its motion kinetic energy in Mechanical Engineering (kɪnɛtɪk ɛnərdʒi) noun (Mechanical engineering: Mechanics and dynamics) Kinetic energy is the energy that a body contains because of its mass and speed. The device converts kinetic energy from the movement of the wind, ocean, or river currents into useful mechanical power. When the electrons strike the workpiece, their kinetic energy changes to heat, which vaporizes minute amounts of the material. Kinetic energy is the energy that a body contains because of its mass and speed. Examples of 'kinetic energy' in a sentence |
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