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METRE PER SECOND [8 records]

Record 1 2023-08-03

English

Subject field(s)
  • Metrology and Units of Measure
CONT

The meter per second is the derived unit of speed in the International System of Units (SI). The meter per second (m/s) is equal to 3.6 kilometers per hour (km/h), or about 2.236936 miles per hour (mph), or 3.28084 feet per second (ft/s), or 39.370079 inches per second (in/s) or 1.943844 knots (kn). The speed is the distance traveled by an object during a period of time. Thus, meters per second (meters/second) show how many meters are traveled in one second. The meter is a unit of length in the metric system[,] while the second is a unit of time.

OBS

metre per second; meter per second; meter/second : designations usually used in the plural.

Key term(s)
  • metres per second
  • meters per second
  • meters/second

French

Domaine(s)
  • Unités de mesure et métrologie
OBS

mètre par seconde : désignation habituellement utilisée au pluriel.

Key term(s)
  • mètres par seconde

Spanish

Save record 1

Record 2 2022-11-30

English

Subject field(s)
  • Metrology and Units of Measure
  • Scientific Measurements and Analyses
  • Air Transport
DEF

The force which, when applied to a body having a mass of 1 kilogram, gives it an acceleration of 1 metre per second squared.

OBS

newton; N: term, symbol and definition officially approved by the International Civil Aviation Organization (ICAO).

French

Domaine(s)
  • Unités de mesure et métrologie
  • Mesures et analyse (Sciences)
  • Transport aérien
DEF

Force qui communique à un corps ayant une masse de 1 kilogramme une accélération de 1 mètre par seconde carrées.

OBS

newton; N : terme, symbole et définition uniformisés par l'Organisation de l'aviation civile internationale (OACI).

Spanish

Campo(s) temático(s)
  • Metrología y unidades de medida
  • Medición y análisis (Ciencias)
  • Transporte aéreo
DEF

Fuerza que, aplicada a un cuerpo que posee una masa de 1 kilogramo produce una aceleración de 1 metro por segundo al cuadrado.

OBS

newton; N: término, símbolo y definición aceptados oficialmente por la Organización de Aviación Civil Internacional (OACI).

Save record 2

Record 3 2014-06-12

English

Subject field(s)
  • Atomic Physics
DEF

A fictitious flux density equal to the product of the total number of neutrons per cubic metre and a neutron speed of 2 200 m/s [metre per second. ]

OBS

2 200 m/s flux density; conventional flux density: terms and definition standardized by ISO.

Key term(s)
  • 2 200 metre per second flux density
  • 2 200 meter per second flux density
  • 2200 metre per second flux density
  • 2200 meter per second flux density

French

Domaine(s)
  • Physique atomique
DEF

Densité de flux fictive égale au produit du nombre total des neutrons par mètre cube, par une vitesse des neutrons de 2 200 m/s [mètres par seconde].

OBS

densité de flux de 2 200 m/s; densité de flux conventionnelle : termes et définition normalisés par l'ISO.

Key term(s)
  • densité de flux de 2 200 mètres par seconde
  • densité de flux de 2200 mètres par seconde

Spanish

Save record 3

Record 4 2014-05-23

English

Subject field(s)
  • Thermodynamics
  • Scientific Measurements and Analyses
DEF

The ratio of the thermal conductivity of a substance to the product of its density and specific heat.

OBS

The SI [International System of Units] unit for this property is the square metre per second.

OBS

thermal diffusivity: term and definition standardized by ISO.

French

Domaine(s)
  • Thermodynamique
  • Mesures et analyse (Sciences)
DEF

Rapport de la conductivité thermique d'une substance au produit de sa masse volumique par sa chaleur spécifique.

OBS

L'unité SI [Système international d'unités] pour cette caractéristique est le mètre carré par seconde.

OBS

Cette grandeur est fonction des variables d'état (température, pression [...]).

OBS

diffusivité thermique : terme et définition normalisés par l'ISO et l'AFNOR.

Spanish

Campo(s) temático(s)
  • Termodinámica
  • Medición y análisis (Ciencias)
DEF

Relación entre la conductividad térmica de una sustancia y el producto de su densidad y calor específico.

OBS

La unidad SI [Sistema internacional de unidades] para esta propiedad es el metro cuadrado por segundo.

Save record 4

Record 5 2013-07-22

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Fluid Mechanics and Hydraulics (Physics)
  • Rheology
DEF

The absolute viscosity of a fluid divided by the density of the fluid at the temperature of the viscosity measurement.

CONT

The dimensions of kinematic viscosity are area divided by time; the appropriate units are metre squared per second.

OBS

kinematic viscosity: term standardized by ISO.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Mécanique des fluides et hydraulique (Physique)
  • Rhéologie
DEF

Quotient de la viscosité dynamique d'un fluide par sa masse volumique à la température considérée.

OBS

viscosité cinématique : terme normalisé par l'ISO.

Spanish

Campo(s) temático(s)
  • Medición y análisis (Ciencias)
  • Mecánica de fluidos e hidráulica (Física)
  • Reología
DEF

Relación entre la viscosidad dinámica o absoluta y la densidad.

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Record 6 2007-10-25

English

Subject field(s)
  • Electromagnetic Radiation
DEF

The speed at which light and other magnetic waves travel through empty space.

CONT

The velocity of light is 2.9979 x 108 m/s.

CONT

The speed of light in a vacuum is an important physical constant denoted by the letter c for "constant" or the Latin word "celeritas" meaning "swiftness". It is the speed of all electromagnetic radiations, including visible light, in a vacuum. More generally, it is the speed of anything having zero rest mass.... In metric units, the speed of light is exactly 299, 792, 458 metres per second(1, 079, 252, 848. 8 km/h). The fundamental SI unit of length, the metre, has been defined since October 21, 1983, as the distance light travels in a vacuum in 1/299, 792, 458 of a second; any increase in the precision of the measurement of the speed of light would refine the definition of the metre, but not alter the numerical value of c. The approximate value of 3x108 m/s is commonly used in rough estimates. In imperial units, the speed of light is about 670, 616, 629. 2 miles per hour or 983, 571, 056 feet per second, which is about 186, 282, 397 miles per second, or roughly one foot per nanosecond. The speed of light when it passes through a transparent or translucent material medium, like glass or air, is slower than its speed in a vacuum. The ratio of c to the observed phase velocity is called the refractive index of the medium.

French

Domaine(s)
  • Rayonnements électromagnétiques
DEF

Vitesse de propagation de la lumière dans le vide.

CONT

La vitesse de la lumière est 2.9979 x 108 m/s.

Spanish

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Record 7 2003-02-27

English

Subject field(s)
  • Spacecraft
CONT

From its close orbit above the tiny nucleus, Rosetta will be able to send back the most detailed images and information ever obtained of a comet. When a suitable landing site has been chosen, about a month after global mapping starts, the orbiter will release a 100 kg lander onto the comet's solid surface. Touchdown must be quite slow-less than one metre per second-to allow for the almost negligible gravitational pull of the tiny nucleus. In order to ensure that the lander does not bounce and disappear into space, an anchoring harpoon will be fired into the surface immediately on impact.

CONT

Penetrators as tools for exploring extraterrestrial solid surfaces have been developed for a couple of space missions to Mars, the Moon, comets, and the icy satellites of the giant planets. They are particularly useful to characterize the strength properties and the layering of planetary nearsurface layers. Being currently engaged with the development of an instrumented "anchoring harpoon" for the lander of ESA’s comet mission Rosetta, we propose similar devices for application aboard future Mars lander missions.

French

Domaine(s)
  • Engins spatiaux
CONT

Le premier module, baptisé LAL [Sigle de Long-Term Automatic Lander. En français, Sonde Automatique de Longue Durée.], était conçu pour s'ancrer dans le sol grâce à une sorte de harpon d'ancrage, appelé Razrez par les soviétiques.

Spanish

Save record 7

Record 8 1991-05-13

English

Subject field(s)
  • Small Arms
DEF

Measure of a projectile's speed, normally expressed in metres per second(m/s). Velocity is function of the calibre, weight and shape of the bullet, powder charge, primer, quality and length of the barrel. NOTE. In modern usage, the precise distance at which the projectile's velocity(V) has been measured is usually also indicated, e. g. V0-velocity at 0 metre(muzzle), V24-velocity measured at 24 metres, V300-remaining velocity at 300 metres.

OBS

Term and definition officialized by the Small Arms Terminology Working Group.

French

Domaine(s)
  • Armes légères
DEF

Mesure de la vitesse d'un projectile, normalement exprimée en mètres par seconde (m/s). La vitesse est fonction du calibre, du poids et de la forme de la balle, de la charge, de l'amorce, de la qualité et de la longueur du canon. NOTE. Dans la pratique courante, la distance précise à laquelle la vitesse (V) de la balle a été mesurée est aussi normalement indiquée, e.g. V0 - vitesse initiale (à la bouche), V24 - vitesse mesurée à 24 mètres, V300 - vitesse restante à 300 mètres.

OBS

Terme et définition uniformisés par le Groupe de travail de terminologie des armes légères.

Spanish

Save record 8

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