Saturday,26th July 2008 UTC

On this page about Velocity:

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• Fundamental physics concepts (208)
• Introductory physics (48)
• Physical quantity (93)

Encyclopedia: Velocity

The velocity of an object is its speed in a particular direction. Velocity can also be defined as rate of change of displacement or just as the rate of displacement. It is a vector physical quantity with dimension LT^(-1). In the SI (metric) system, it is measured in meters per second.

Translations

How to say "Velocity" in other languages:

	(Chinese)	速度
	(Japanese)	速度
	(German)	Geschwindigkeit
	(Spanish)	Velocidad (física)
	(French)	Vitesse
	(Italian)	Velocità media

Search results

Escape Velocity

Escape Velocity means two things: the term escape velocity in physics the computer game Escape Velocity...

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Particle velocity level

The Particle velocity level or the sound velocity level tells the ratio of a sound incidence in comparison to a reference level of 0 dB. It shows the ratio of the particle velocity v 1 and the particle velocity v 0. The Particle velocity level (sound velocity level) is: where v 1 and v 0 are the...

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Sound velocity level

...

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Sound velocity

Sound velocity or particle velocity or sound particle velocity is the velocity v in m/s with which... wrongly named "velocity of sound". In acoustics the sound velocity level (particle velocity level) L v in decibels is usually used for the sound velocity v . The sound velocity v in m/s is: Sound...

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Particle velocity

Particle velocity or sound particle velocity or sound velocity is the velocity v of air particles... acoustics the particle velocity is measured as the particle velocity level L v in decibels. The particle velocity v in m/s is: Sound pressure p in N/m² = Pa Acoustic impedance, sound impedance, or...

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Drift velocity

The drift velocity is the average velocity that a particle, such as an electron, attains, due to an... absence of other forces, the term "drift velocity" can only really apply to carriers in materials, and... lattice (or phonons), which slows them down. In equilibrium they will have an average velocity, and...

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Group velocity

The group velocity of a wave is the velocity with which the overall shape of the wave's amplitude (known as the envelope of the wave) progagates through space. The group velocity is defined in terms of the wave's angular frequency ω and wave number k by The group velocity is often thought of...

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Income velocity of money

In economics, income velocity of money is the number of times an individual unit of currency turns over (eg, is spent) in a specific period of time. Velocity affects the amount of economic activity generated by a given money supply...

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Phase velocity

The phase velocity of a wave is the rate at which the phase of the wave propagates in space. This is the velocity at which the phase of any one frequency component of the wave will propagate. You... the phase velocity. The phase velocity is given in terms of the wave's frequency ω and wave vector k...

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Kt

...

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