Pascal (unit) | Wikipedia audio article

This is an audio version of the Wikipedia Article:
Pascal (unit)


00:00:22 1 Etymology
00:00:55 2 Definition
00:01:23 3 Standard units
00:02:35 4 Uses
00:03:45 4.1 Hectopascal and millibar units
00:05:21 5 See also
00:06:11 6 References



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SUMMARY
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The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength. It is defined as one newton per square metre. It is named after the French polymath Blaise Pascal.
Common multiple units of the pascal are the hectopascal (1 hPa = 100 Pa) which is equal to one millibar, and the kilopascal (1 kPa = 1000 Pa) which is equal to one centibar.
The unit of measurement called standard atmosphere (atm) is defined as 101325 Pa. Meteorological reports typically state atmospheric pressure in millibars.