| 单词 | momentum |
| 释义 | momentum (once / 1007 pages) n Momentum is generally used to mean increasing forward motion. A boulder rolling down a hill gains momentum. So does a great idea, a team on a winning streak, or the economy. To find an object's physical momentum you multiply its mass by its velocity. Determining the momentum of the economy or the latest fad is much more difficult. Used figuratively, momentum implies that, like a boulder rolling down a hill, something with momentum will continue moving forward on its own. If you're running for class president, you might want to build momentum by holding a few rallies, passing out flyers and starting a website. Once you have momentum, your opponents won't be able to stop you. WORD FAMILYmomentum: momenta, momentums USAGE EXAMPLESBut United continued to look like a team gathering some genuine momentum. The Guardian(Jan 02, 2017) After Bennett’s “vicious, high-speed direct slam,” as the Times put it, Alabama seized the momentum and won, 28–10. The New Yorker(Jan 01, 2017) They surge into the postseason, and they feed off that momentum. Seattle Times(Jan 01, 2017) 1n the product of a body's mass and its velocity the momentum of the particles was deduced from meteoritic velocities Hypo|Hyper angular momentum the product of the momentum of a rotating body and its distance from the axis of rotation physical property any property used to characterize matter and energy and their interactions 2n an impelling force or strength the car's momentum carried it off the road Syn|Hyper impulse force, forcefulness, strength physical energy or intensity |
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