Power (physics), the Glossary
Power is the amount of energy transferred or converted per unit time.[1]
Table of Contents
64 relations: Ampere, Angular frequency, Angular velocity, British thermal unit, Calorie, Coal, Conservative force, DBm, Derivative, Distance, Dot product, Drag (physics), Electric current, Electrical element, Electrical network, Electrical resistance and conductance, Energy, Engine, Erg, Foot-pound (energy), Force, Fundamental theorem of calculus, Gear train, Gradient, Gradient theorem, Horsepower, Hydraulics, Intensity (physics), International System of Units, Joule, Kilogram, Line integral, Mechanical advantage, Mechanics, Metre, Ohm, Orders of magnitude (power), Pascal (unit), Power density, Power gain, Pressure, Pulsed power, Radian per second, Rate (mathematics), Resistor, Scalar (physics), Second, Signal strength in telecommunications, Simple machine, Smithsonian Institution, ... Expand index (14 more) »
Ampere
The ampere (symbol: A), often shortened to amp,SI supports only the use of symbols and deprecates the use of abbreviations for units.
See Power (physics) and Ampere
Angular frequency
In physics, angular frequency (symbol ω), also called angular speed and angular rate, is a scalar measure of the angle rate (the angle per unit time) or the temporal rate of change of the phase argument of a sinusoidal waveform or sine function (for example, in oscillations and waves).
See Power (physics) and Angular frequency
Angular velocity
In physics, angular velocity (symbol or \vec, the lowercase Greek letter omega), also known as angular frequency vector,(UP1) is a pseudovector representation of how the angular position or orientation of an object changes with time, i.e. how quickly an object rotates (spins or revolves) around an axis of rotation and how fast the axis itself changes direction. Power (physics) and angular velocity are temporal rates.
See Power (physics) and Angular velocity
British thermal unit
The British thermal unit (Btu) is a measure of heat, which is a form of energy.
See Power (physics) and British thermal unit
Calorie
The calorie is a unit of energy that originated from the caloric theory of heat.
See Power (physics) and Calorie
Coal
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams.
Conservative force
In physics, a conservative force is a force with the property that the total work done by the force in moving a particle between two points is independent of the path taken. Power (physics) and conservative force are force.
See Power (physics) and Conservative force
DBm
dBm or dBmW (decibel-milliwatts) is a unit of power level expressed using a logarithmic decibel (dB) scale respective to one milliwatt (mW).
Derivative
The derivative is a fundamental tool of calculus that quantifies the sensitivity of change of a function's output with respect to its input.
See Power (physics) and Derivative
Distance
Distance is a numerical or occasionally qualitative measurement of how far apart objects, points, people, or ideas are. Power (physics) and Distance are physical quantities.
See Power (physics) and Distance
Dot product
In mathematics, the dot product or scalar productThe term scalar product means literally "product with a scalar as a result".
See Power (physics) and Dot product
Drag (physics)
In fluid dynamics, drag, sometimes referred to as fluid resistance, is a force acting opposite to the relative motion of any object, moving with respect to a surrounding fluid. Power (physics) and drag (physics) are force.
See Power (physics) and Drag (physics)
Electric current
An electric current is a flow of charged particles, such as electrons or ions, moving through an electrical conductor or space.
See Power (physics) and Electric current
Electrical element
In electrical engineering, electrical elements are conceptual abstractions representing idealized electrical components, such as resistors, capacitors, and inductors, used in the analysis of electrical networks.
See Power (physics) and Electrical element
Electrical network
An electrical network is an interconnection of electrical components (e.g., batteries, resistors, inductors, capacitors, switches, transistors) or a model of such an interconnection, consisting of electrical elements (e.g., voltage sources, current sources, resistances, inductances, capacitances).
See Power (physics) and Electrical network
Electrical resistance and conductance
The electrical resistance of an object is a measure of its opposition to the flow of electric current. Power (physics) and electrical resistance and conductance are physical quantities.
See Power (physics) and Electrical resistance and conductance
Energy
Energy is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Power (physics) and Energy are physical quantities.
See Power (physics) and Energy
Engine
An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy.
See Power (physics) and Engine
Erg
The erg is a unit of energy equal to 10−7joules (100nJ).
The foot-pound force (symbol: ft⋅lbf, ft⋅lbf, or ft⋅lb) is a unit of work or energy in the engineering and gravitational systems in United States customary and imperial units of measure.
See Power (physics) and Foot-pound (energy)
Force
A force is an influence that can cause an object to change its velocity, i.e., to accelerate, meaning a change in speed or direction, unless counterbalanced by other forces. Power (physics) and force are physical quantities and temporal rates.
Fundamental theorem of calculus
The fundamental theorem of calculus is a theorem that links the concept of differentiating a function (calculating its slopes, or rate of change at each point in time) with the concept of integrating a function (calculating the area under its graph, or the cumulative effect of small contributions).
See Power (physics) and Fundamental theorem of calculus
Gear train
A gear train or gear set is a machine element of a mechanical system formed by mounting two or more gears on a frame such that the teeth of the gears engage.
See Power (physics) and Gear train
Gradient
In vector calculus, the gradient of a scalar-valued differentiable function f of several variables is the vector field (or vector-valued function) \nabla f whose value at a point p gives the direction and the rate of fastest increase.
See Power (physics) and Gradient
Gradient theorem
The gradient theorem, also known as the fundamental theorem of calculus for line integrals, says that a line integral through a gradient field can be evaluated by evaluating the original scalar field at the endpoints of the curve.
See Power (physics) and Gradient theorem
Horsepower
Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors.
See Power (physics) and Horsepower
Hydraulics
Hydraulics is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids.
See Power (physics) and Hydraulics
Intensity (physics)
In physics and many other areas of science and engineering the intensity or flux of radiant energy is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy. Power (physics) and intensity (physics) are physical quantities.
See Power (physics) and Intensity (physics)
International System of Units
The International System of Units, internationally known by the abbreviation SI (from French Système international d'unités), is the modern form of the metric system and the world's most widely used system of measurement.
See Power (physics) and International System of Units
Joule
The joule (pronounced, or; symbol: J) is the unit of energy in the International System of Units (SI).
Kilogram
The kilogram (also kilogramme) is the base unit of mass in the International System of Units (SI), having the unit symbol kg.
See Power (physics) and Kilogram
Line integral
In mathematics, a line integral is an integral where the function to be integrated is evaluated along a curve.
See Power (physics) and Line integral
Mechanical advantage
Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system.
See Power (physics) and Mechanical advantage
Mechanics
Mechanics (from Ancient Greek: μηχανική, mēkhanikḗ, "of machines") is the area of physics concerned with the relationships between force, matter, and motion among physical objects.
See Power (physics) and Mechanics
Metre
The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI).
Ohm
The ohm (symbol: Ω, the uppercase Greek letter omega) is the unit of electrical resistance in the International System of Units (SI).
Orders of magnitude (power)
This page lists examples of the power in watts produced by various sources of energy.
See Power (physics) and Orders of magnitude (power)
Pascal (unit)
The pascal (symbol: Pa) is the unit of pressure in the International System of Units (SI).
See Power (physics) and Pascal (unit)
Power density
Power density, defined as the amount of power (the time rate of energy transfer) per unit volume, is a critical parameter used across a spectrum of scientific and engineering disciplines.
See Power (physics) and Power density
Power gain
In electrical engineering, the power gain of an electrical network is the ratio of an output power to an input power.
See Power (physics) and Power gain
Pressure
Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.
See Power (physics) and Pressure
Pulsed power
Pulsed power is the science and technology of accumulating energy over a relatively long period of time and releasing it instantly, thus increasing the instantaneous power.
See Power (physics) and Pulsed power
Radian per second
The radian per second (symbol: rad⋅s−1 or rad/s) is the unit of angular velocity in the International System of Units (SI).
See Power (physics) and Radian per second
Rate (mathematics)
In mathematics, a rate is the quotient of two quantities in different units of measurement, often represented as a fraction.
See Power (physics) and Rate (mathematics)
Resistor
A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element.
See Power (physics) and Resistor
Scalar (physics)
Scalars (or scalar quantities) are physical quantities that are unaffected by changes to a vector space basis (i.e., a coordinate system transformation).
See Power (physics) and Scalar (physics)
Second
The second (symbol: s) is the unit of time in the International System of Units (SI), historically defined as of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each (24 × 60 × 60.
See Power (physics) and Second
Signal strength in telecommunications
In telecommunications, particularly in radio frequency engineering, signal strength refers to the transmitter power output as received by a reference antenna at a distance from the transmitting antenna.
See Power (physics) and Signal strength in telecommunications
Simple machine
A simple machine is a mechanical device that changes the direction or magnitude of a force.
See Power (physics) and Simple machine
Smithsonian Institution
The Smithsonian Institution, or simply the Smithsonian, is a group of museums, education and research centers, the largest such complex in the world, created by the U.S. government "for the increase and diffusion of knowledge." Founded on August 10, 1846, it operates as a trust instrumentality and is not formally a part of any of the three branches of the federal government.
See Power (physics) and Smithsonian Institution
Sound power
Sound power or acoustic power is the rate at which sound energy is emitted, reflected, transmitted or received, per unit time. Power (physics) and sound power are physical quantities.
See Power (physics) and Sound power
The Feynman Lectures on Physics
The Feynman Lectures on Physics is a physics textbook based on a great number of lectures by Richard Feynman, a Nobel laureate who has sometimes been called "The Great Explainer".
See Power (physics) and The Feynman Lectures on Physics
Time
Time is the continued sequence of existence and events that occurs in an apparently irreversible succession from the past, through the present, and into the future. Power (physics) and Time are physical quantities.
TNT
Trinitrotoluene, more commonly known as TNT (and more specifically 2,4,6-trinitrotoluene), and by its preferred IUPAC name 2-methyl-1,3,5-trinitrobenzene, is a chemical compound with the formula C6H2(NO2)3CH3.
TNT equivalent
TNT equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion.
See Power (physics) and TNT equivalent
Ton of refrigeration
A ton of refrigeration (TR or TOR), also called a refrigeration ton (RT), is a unit of power used in some countries (especially in North America) to describe the heat-extraction capacity of refrigeration and air conditioning equipment.
See Power (physics) and Ton of refrigeration
Torque
In physics and mechanics, torque is the rotational analogue of linear force. Power (physics) and torque are force.
See Power (physics) and Torque
Traction (mechanics)
Traction, traction force or tractive force is a force used to generate motion between a body and a tangential surface, through the use of either dry friction or shear force. Power (physics) and traction (mechanics) are force.
See Power (physics) and Traction (mechanics)
Velocity
Velocity is the speed in combination with the direction of motion of an object. Power (physics) and Velocity are temporal rates.
See Power (physics) and Velocity
Volt
The volt (symbol: V) is the unit of electric potential, electric potential difference (voltage), and electromotive force in the International System of Units (SI).
Voltage
Voltage, also known as (electrical) potential difference, electric pressure, or electric tension is the difference in electric potential between two points. Power (physics) and Voltage are physical quantities.
See Power (physics) and Voltage
Volumetric flow rate
In physics and engineering, in particular fluid dynamics, the volumetric flow rate (also known as volume flow rate, or volume velocity) is the volume of fluid which passes per unit time; usually it is represented by the symbol (sometimes \dot V). Power (physics) and volumetric flow rate are temporal rates.
See Power (physics) and Volumetric flow rate
Watt
The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3.
Work (physics)
In science, work is the energy transferred to or from an object via the application of force along a displacement. Power (physics) and work (physics) are force.
See Power (physics) and Work (physics)
References
[1] https://en.wikipedia.org/wiki/Power_(physics)
Also known as Instantaneous power, Mechanical power (physics), Mobile power, Specific rotary power.
, Sound power, The Feynman Lectures on Physics, Time, TNT, TNT equivalent, Ton of refrigeration, Torque, Traction (mechanics), Velocity, Volt, Voltage, Volumetric flow rate, Watt, Work (physics).