Temperature ? a term that we use daily as a matter needless to say, without being made aware of the physical correlations. But how is the term temperature defined?
Everybody perceives temperature in their environment purely subjectively. If we are too warm or too cold, this can be a feeling, which may be different from person to person ? because not everyone gets cold at exactly the same speed. The term temperature ? or, better, the problem, that influences (among other activities) our state of mind ? is discussed daily when we are discussing the expected temperature from the weather forecast with friends, acquaintances or colleagues.
Temperature
With the word temperature (from the Greek ?thermis? = warm), a specific thermal state of a body is described. Heat is really a measure of the energy of a body, that is generated by the random motion of its atoms or molecules within the body?s interior. Here, the temperature may be the magnitude of circumstances which establishes the power content associated with other physical quantities (mass, heat capacity).
Temperature unit
The machine of temperature may be the Kelvin. At Massive of 0 K, all atoms or molecules inside a body are in rest ? all motion within the body is frozen. One describes this state as the absolute zero point. The Celsius temperature scale which is more common in our latitudes defines the zero point as the freezing point of water, since this problem could possibly be reproduced without great technical effort in past times.
Bonus are directly dependent on the temperature and therefore are employed for temperature measurement, such as for example, for example:
the dependence of expansion on temperature
the change in electrical resistance with temperature
voltage generation with regards to the temperature
temperature-dependent frequency fluctuations
changes in the wavelength of rays of a body, with regards to the temperature
Note
Info on our temperature measuring instruments can be found on the WIKA Website.