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Learn the various meanings and uses of the word impulse, from a sudden urge to act to a wave of excitation in nerves. See synonyms, examples, word history, and related phrases for impulse.
Learn the meaning of impulse as a noun in English, with examples of usage and collocations. Find out how to say impulse in different languages, such as Chinese, Spanish and Portuguese.
In classical mechanics, impulse (symbolized by J or Imp) is the change in momentum of an object. If the initial momentum of an object is p1, and a subsequent momentum is p2, the object has received an impulse J : Momentum is a vector quantity, so impulse is also a vector quantity.
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Learn the meaning of impulse as a noun in English, with examples of usage and common collocations. Impulse can refer to a sudden wish, a signal, or a force in different contexts.
an impelling action or force, driving onward or inducing motion. the effect of an impelling force; motion induced; impetus given. Physiology. a progressive wave of excitation over a nerve or muscle fiber, having either a stimulating or inhibitory effect.
An impulse is a sudden force or desire — this could be an electrical impulse, or an impulse to get some pizza. If you act on a sudden feeling or thought, you’re following an impulse. That's like a whim: an impulse isn't something you've given a lot of thought.
Learn how momentum and impulse are related to force and mass in motion. See how impulse is used in space, rockets and aircraft.
