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    This Review contains major "Physical Quantity"- related terms, short phrases and links grouped together in the form of Encyclopedia article.


  1. A physical quantity is anything that can be measured. (Web site)
  2. A physical quantity is a physical property that can be quantified.
  3. Physical quantity is the numerical value of a measurable property that describes a physical system 's state at a moment in time.
  4. A physical quantity is called invariant under a transformation if it remains the same after being transformed. (Web site)
  5. A physical quantity is a quantity that can be used in the mathematical equations of science and technology.

Quantity Expressed

  1. The value of a physical quantity Q is expressed as the product of a numerical value { Q } and a physical unit [Q]. (Web site)
  2. The second column is one of the typical symbols used for the physical quantity. (Web site)
  3. The third column is the dimension of the physical quantity expressed in terms of the fundamental dimensions. (Web site)

Physical Quantities

  1. The table below is organized to present the physical quantity name with associated information. (Web site)
  2. Look for new perspectives on the magnitude of any physical quantity.
  3. Firstly, the exponential function is continuous, but the physical quantity N can only take non-negative integer values.
  4. By integrating the changes of these physical quantities, the physical quantity on the measurement object can be measured. (Web site)

Like Dimensioned

  1. Spectroscopy can be classified according to the physical quantity which is measured or calculated or the measurement process.
  2. The amount of substance, n, of a sample or system is a physical quantity which is proportional to the number of elementary entities present.
  3. We can describe heat as an extensive physical quantity, and temperature as an intensive physical quantity.
  4. Whenever one measures any physical quantity, they are measuring that physical quantity against a like dimensioned standard.
  5. Physical quantity From Biocrawler, the free encyclopedia. (Web site)


  1. For example, the recommended symbol for a physical quantity of mass is m, and the recommended symbol for a quantity of charge is Q.
  2. The value of a dimensional physical quantity is written as the product of a unit within the dimension and a dimensionless numerical factor.
  3. The entire SI system of measurement is constructed from seven base units, each of which represents a single physical quantity as shown in the table below.
  4. Raising a physical quantity to a power results in a new physical quantity having a dimension with the exponents multiplied by the power. (Web site)
  5. Categories: SI derived units | Physical quantity | Optics In physics, intensity is a measure of the time-averaged energy flux. (Web site)

Conversion Factors

  1. Two different units of the same physical quantity have conversion factors between them.
  2. A measure with unit is the specification of a physical quantity as defined in ISO 31 (clause 2).
  3. Physical Quantity and Unit - Physical quantity and unit & More. (Web site)


  1. As in other systems of units, the following units of physical quantity are defined in terms of the base Planck units.
  2. These angular speed sensor and acceleration sensor are mounted on one base member such as a chip or a substrate so that a physical quantity sensor is formed.


  1. In physics, a scalar is a simple physical quantity that does not depend on direction, and therefore does not depend on the choice of a coordinate system. (Web site)
  2. Last check: 2007-11-07) A physical quantity is either a quantity within physics that can be measured (e.g. (Web site)


  1. This is the "Physical quantity" reference article from the English Wikipedia. (Web site)
  2. Categories Physical quantity | Photometry This article is courtesy of aidepikiW and is licensed under the GNU Free Documentation License 1.2.


  1. The main article for this category is Physical quantity. (Web site)
  2. There is no such topic as "physical quantity", and so I would presume that such a category should not exist, and should be replaced with its plural name. (Web site)
  3. You seem to be advocating the use of physical quantity as a list of items, but then conclude that the category should be named in the singular.

Output Signal

  1. However, for very low input signals, the output signal is dominated by noise and does no longer quantify the physical quantity which should be determined.

Physical Property

  1. A physical quantity is either a physical property that can be measured (e.g. (Web site)


  1. The physical quantity that is measured by the transducer, i.e., the input to the transducer. (Web site)
  2. Transducer A device which converts a physical quantity into an electrical signal. (Web site)

Electromagnetic Radiation

  1. The smallest amount of a physical quantity that can exist independently, especially a discrete quantity of electromagnetic radiation. (Web site)
  2. The one physical quantity that determines the character of thermal radiation is its temperature. (Web site)
  3. Permittivity is a physical quantity that describes how an electric field affects and is affected by a medium.


  1. This paper is limited to a simple CIPM key comparison where the common measurand is a physical quantity of stable value during the comparison.

Numerical Value

  1. In fact, 1 Planck unit is often the largest or smallest value of a physical quantity that makes sense given the current state of physical theory.
  2. An analog computer represents a datum as a voltage, distance, position, or other physical quantity. (Web site)
  3. Here h W is the physical quantity, its value expressed in the unit "meter," unit symbol m, is 169 m, and its numerical value when expressed in meters is 169. (Web site)

Luminous Intensity

  1. Sound intensity is not the same physical quantity as sound pressure. (Web site)
  2. Luminous intensity is not the same as the radiant intensity, the corresponding objective physical quantity. (Web site)
  3. The mass-to-charge ratio is a physical quantity that is widely used in the electrodynamics of charged particles, e.g. (Web site)

Radiant Energy

  1. Luminous energy is the perceived energy of light, differing from radiant energy, which is an objective physical quantity. (Web site)
  2. Candela - the international basic physical quantity of all measurements of light.


  1. Angular velocity is the vector physical quantity that represents the rotation of a spinning body.
  2. Torque is the physical quantity which produces angular acceleration in the body. (Web site)
  3. In general, expresses the rate of transfer per unit area of some condition or physical quantity, such as rainfall, electromagnetic energy, sound, etc.
  4. These angular speed sensor and acceleration sensor are mounted on one base member such as a chip or a substrate so that a physical quantity sensor is formed. (Web site)

Vector Quantity

  1. Because momentum depends on and includes the physical quantity of velocity, it too has a magnitude and a direction and is a vector quantity. (Web site)
  2. Density is therefore a scalar quantity; it is a simple physical quantity that has a magnitude but no direction associated with it.
  3. Any physical quantity in scientific notation is assumed to be precise to no fewer than the quoted number of digits of precision.


  1. A logarithmic scale is a scale of measurement that uses the logarithm of a physical quantity instead of the quantity itself. (Web site)
  2. Accuracy of serial communications between the physical quantity measurement device and the external device is improved. (Web site)

Metric System

  1. The main advantage of the metric system is that it has a single base unit for each physical quantity.

Si Units

  1. By default output is done in basic SI units, but you can specify any output unit, as long as it can be reduced to the basic units of the physical quantity. (Web site)
  2. It would be so nice if the physical quantity measured by candelas was just "power emitted per unit solid angle." However, this is not the case. (Web site)

Si Unit

  1. The SI unit of the physical quantity m ⁄ Q is the kilogram per coulomb. (Web site)
  2. The notion of physical dimension of a physical quantity was introduced by Fourier (1822).

Physical Quantity

  1. Isospin (isotopic spin, isobaric spin) is a physical quantity which is mathematically analogous to spin.


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  Short phrases about "Physical Quantity"
  Originally created: June 24, 2008.
  Links checked: May 18, 2013.
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