Energy - Measurement

Measurement

Because energy is defined as the ability to do work on objects, there is no absolute measure of energy. Only the transition of a system from one state into another can be defined and thus energy is measured in relative terms. The choice of a baseline or zero point is often arbitrary and can be made in whatever way is most convenient for a problem.

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Other articles related to "measurement, measurements":

Measurement Tower
... A measurement tower is a free standing tower or a removed mast, which carries measuring instruments with meteorological instruments such as thermometers and wind velocity measurers ... Beside measurement towers, which are equipped with meteorological measuring instruments, there are also measuring towers for measuring the radiation ...
Electrical Capacitance Tomography
... distribution in the interior of an object from external capacitance measurements ... Potential applications include the measurement of flow of fluids in pipes and measurement of the concentration of one fluid in another, or the distribution of a solid in a fluid ... capacitance sensing methods were in widespread use the idea of using capacitance measurement to form images is attributed to Maurice Beck and co-workers at UMIST in the 1980s ...
Measurement - Definitions and Theories - Quantum Mechanics
... In quantum mechanics, a measurement is an action that determines the location of an object, its momentum, its polarity (if it is a photon), etc ... Before a measurement is made, the wavefunction of what is to be measured gives the range of probabilities for the outcomes of measurement, but when a ... The unambiguous meaning of the measurement problem is an unresolved fundamental problem in quantum mechanics ...
Correction For Attenuation
... coefficient from the weakening effect of measurement error" (Jensen, 1998), a phenomenon also known as regression dilution ... In measurement and statistics, it is also called disattenuation ... The correlation between two sets of parameters or measurements is estimated in a manner that accounts for measurement error contained within the estimates of those ...
Inch (disambiguation) - Units
... Inch as a measurement of rain, measured by a rain gauge Inch of mercury, unit of pressure Inch of water, unit of pressure Scottish inch, Scottish unit of ...

Famous quotes containing the word measurement:

    That’s the great danger of sectarian opinions, they always accept the formulas of past events as useful for the measurement of future events and they never are, if you have high standards of accuracy.
    John Dos Passos (1896–1970)