Impulse or Impulsive may refer to:

Science

Impulse (physics) In classical mechanics, impulse (symbolized by or Imp) is the change in momentum of an object. If the initial momentum of an object is , and a subsequent momentum is , the object has received an impulse : \mathbf=\mathbf_2 - \mathbf_1. Moment ...

, in mechanics, the change of momentum of an object; the integral of a force with respect to time * Impulse noise (disambiguation) *

Specific impulse Specific impulse (usually abbreviated ) is a measure of how efficiently a reaction mass engine, such as a rocket engine, rocket using propellant or a jet engine using fuel, generates thrust. In general, this is a ratio of the ''Impulse (physics), ...

, the change in momentum per unit mass of propellant of a propulsion system *

Impulse function In mathematical analysis, the Dirac delta function (or distribution), also known as the unit impulse, is a generalized function on the real numbers, whose value is zero everywhere except at zero, and whose integral over the entire real lin ...

, a mathematical function of an infinitely high amplitude and infinitesimal duration *

Impulse response In signal processing and control theory, the impulse response, or impulse response function (IRF), of a dynamic system is its output when presented with a brief input signal, called an impulse (). More generally, an impulse response is the reac ...

, a system's output when presented with the impulse function in Electrical Engineering *

Impulse (psychology) In psychology, impulsivity (or impulsiveness) is a tendency to act on a whim, displaying behavior characterized by little or no forethought, reflection, or consideration of the consequences. Impulsive actions are typically "poorly conceived, pre ...

, a wish or urge, particularly a sudden one * Impulsion, a thrust of a horse

Film and television

* ''Impulse'' (1954 film), a thriller film starring Arthur Kennedy * ''Impulse'' (1974 film), a thriller film starring William Shatner * ''Impulse'' (1984 film), a science fiction film starring Meg Tilly and Tim Matheson * ''Impulse'' (1990 film), a thriller film starring Theresa Russell * ''Impulse'' (2008 film), a thriller film starring Angus Macfadyen * ''Impulse'' (2010 film), an apocalyptic thriller film starring Chris Masterson * ''Impulse'' (TV series), a 2018 American television series that streams on YouTube Premium * ''Impulse'' (2024 film), an upcoming American film directed by Patrick Flaherty * "Impulse" (''Star Trek: Enterprise''), a third-season episode of ''Star Trek: Enterprise'' **

Impulse drive Space travel, or space flight (less often, starfaring or star voyaging) is a science fiction theme that has captivated the public and is almost archetypal for science fiction. Space travel, interplanetary or interstellar, is usually performed ...

, a fictional form of propulsion in Star Trek

Print media

* ''Impulse'' (German magazine), a German monthly magazine * ''Impulse'' (Steven Gould novel), a 2013 novel by Steven Gould * ''Impulse'' (Hopkins novel), a 2007 young adult verse novel by Ellen Hopkins *

Impulse (Psionex) Psionex are a fictional team of supervillains and occasional anti-heroes appearing in American comic books published by Marvel Comics. Publication history Created by Fabian Nicieza and Mark Bagley, Psionex first appeared in ''The New Warriors'' # ...

, a Marvel Comics character by Fabian Nicieza and Mark Bagley * Impulse (DC Comics), an identity shared by three comic book superheroes published by DC Comics: Bart Allen, Kent Shakespeare, and Iris West * ''Science Fantasy'' (magazine), which was published for a while under the titles ''Impulse'' and ''SF Impulse''

Music

Impulse (band) Impulse is a Bulgarian rock/metal group, formed by Iliya Kunchev in March 1979. They have released six albums, the most famous being "Gladiator". History The band was formed in March 1979 by Iliya Kunchev. In the first line-up also were V ...

, Bulgarian hard rock group *

Impulse! Records Impulse! Records (occasionally styled as "¡mpulse! Records" and "¡!") is an American jazz record label established by Creed Taylor in 1960. John Coltrane was among Impulse!'s earliest signings. Thanks to consistent sales and positive critiques ...

, a jazz recording label * ''Impulse'' (Buck Hill album), 1995 *

Impulse Drum and Bugle Corps The Impulse Drum and Bugle Corps is an Open Class competitive junior drum and bugle corps. Based in Buena Park, California, Impulse performs in Drum Corps International (DCI) competitions. Impulse was the 2006 DCI Division III World Champion. ...

, an Open Class Drum and Bugle Corps from Buena Park, California * ''Impulse'' (Erra album), 2011 * "Impulse", a song by Northlane from ''

Node In general, a node is a localized swelling (a "knot") or a point of intersection (a vertex). Node may refer to: In mathematics * Vertex (graph theory), a vertex in a mathematical graph *Vertex (geometry), a point where two or more curves, lines ...

'', 2015 * "Impulsive" (song), a 1990 song by Wilson Phillips

Business

* Impulse Airlines, a former Australian airline * Impulse (retailer), an entertainment retailer in the UK * Isuzu Impulse, a small sporty three-door hatchback sold from 1981 through to 1992 * Impulse (body mist), a body spray made by Unilever * Impulse (software), a digital distribution system for computer games * Impulse purchase (also impulse buying), an unplanned decision to buy a product or service made just before the purchase

Other

* Impulse 21, an American sailboat design *

Impulse (dinghy) The Impulse is an Australian sailing dinghy that was designed by Arthur Caldwell (naval architect), Arthur Caldwell as a one-design Sailing (sport), racer and first built in 1975. Production The design was originally intended as a wooden boat ...

, a 4.0 m sports sailing dinghy * Impulse (roller coaster), a roller coaster at Knoebels Amusement Resort in Pennsylvania *

Impulsivity In psychology, impulsivity (or impulsiveness) is a tendency to act on a whim, displaying behavior characterized by little or no forethought, reflection, or consideration of the consequences. Impulsive actions are typically "poorly conceived, pre ...

* Irresistible impulse, a legal defense that claims that an accused should not be held responsible for his or her actions {{disambiguation