the metric unit of pressure is what
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Pressure Some of these derive from a unit of force divided by a unit of area; the SI unit of pressure, the pascal (Pa), for example, is one newton per square metre; similarly, the pound-force per square inch (psi) is the traditional unit of pressure in the imperial and US customary systems.
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Pressure The CGS unit of pressure is the barye (Ba), equal to 1 dyn·cm −2 or 0.1 Pa. Pressure is sometimes expressed in grams-force or kilograms-force per square centimetre (g/cm 2 or kg/cm 2) and the like without properly identifying the force units.
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Pressure The CGS unit of pressure is the barye (Ba), equal to 1 dyn·cm −2 or 0.1 Pa. Pressure is sometimes expressed in grams-force or kilograms-force per square centimetre (g/cm 2 or kg/cm 2) and the like without properly identifying the force units.he SI unit for pressure is the pascal (Pa), equal to one newton per square metre (N/m 2 or kg·m −1 ·s −2). This name for the unit was added in 1971; before that, pressure in SI was expressed simply in newtons per square metre.
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pressure Pressure is an expression of force exerted on a surface per unit area. The standard unit of pressure is the pascal (Pa), equivalent to one newton per meter squared (N/m 2 or N · m -2). Alternatively, pressure can be measured in dynes per centimeter squared (dyn/cm 2 or dyn · cm -2).
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- The unit of measurement called atmosphere or standard atmosphere (atm) is 101325 Pa (101.325 kPa). This value is often used as a reference pressure and specified as such in some national and international standards, such as ISO 2787 (pneumatic tools and compressors), ISO 2533 (aerospace) and ISO 5024 (petroleum).he pascal (Pa) or kilopascal (kPa) as a unit of pressure measurement is widely used throughout the world and has largely replaced the pounds per square inch (psi) unit, except in some countries that still use the Imperial measurement system, including the United States.
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- You may measure pressure in psi, but the two units that are most commonly used when measuring pressure of an ideal gas are atmospheres (atm) and millimeters of mercury (mmHg). An atmosphere is the amount of pressure you 'feel' at sea level on a normal day. It is equivalent to 14.7 psi and 760 mmHg (or 760 torr).
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- The standard atmosphere (symbol: atm) is a unit of pressure equal to 101325 Pa or 1013.25 hectopascals or millibars. Equivalent to 760 mmHg (torr), 29.92 inHg, 14.696 psi. (The pascal is a newton per square meter or in terms of SI base units, kilogram per meter per second-squared.).ne atmosphere (101 kPa or 14.7 psi) is the pressure caused by the weight of a column of fresh water of approximately 10.3 m (33.8 ft).
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Pressure Units (2) The conventional millimetre of mercury (mmHg) and the conventional inch of mercury (inHg) are defined in terms of the pressure generated by a mercury column of unit length and of assigned density 13595.1 kg/m3 at 0 °C under standard gravity of 9.80665 m/s2.
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Convert mmHg to atmosphere [standard] - Conversion of Measurement Units The torr (symbol: Torr) or millimetre of mercury (mmHg) is a non-SI unit of pressure. It is the atmospheric pressure that supports a column of mercury 1 millimetre high. The unit is named after Evangelista Torricelli, Italian physicist and mathematician, for his discovery of the principle of the barometer in 1643.
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- Most National Weather Service measurements are given in inches of mercury. At sea level, standard air pressure is 29.92 inches of mercury and 1,013 millibars. Inches of mercury is measured in how high a column of mercury rises in a barometer.One millibar is equivalent to one-thousandth of a single bar, or 1,000 dynes.
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pressure Pressure is the force per unit area applied to the surface of an object in a vertical direction (i.e. perpendicular to the surface). Gauge pressure is related to the local atmospheric or ambient pressure. Pressure is a force is applied on the surface of that object measured per unit area of surface. Pressure is represented by the symbol p or P. The SI unit for pressure is the pascal (Pa) and is equal to one newton per square meter (N/m2 or kg/m.s2 - prior to 1971 the unit was simply known as N/m2). Non-SI measures in common use are pounds per square inch (psi) and bar.
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Pressure The standard unit for pressure is the Pascal, which is a Newton per square meter. For an object sitting on a surface, the force pressing on the surface is the weight of the object, but in different orientations it might have a different area in contact with the surface and therefore exert a different pressure.Pressure calculation.ressure is defined as force per unit area. It is usually more convenient to use pressure rather than force to describe the influences upon fluid behavior.
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Understanding Vacuum Measurement Units 2) Inches of mercury (Hg) on a scale of 0 to 30, and the metric equivalent 3) Millimeters of Hg on a scale of 0 to 760 (A millimeter = 1/000 th of a meter) One needs to be cautious here, as the original mercury in a tube vacuum gauge measures the reduced pressure (vacuum) from atmospheric pressure downwards towards zero pressure, but the numbers on the scale read from 0 towards a maximum of 30.
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Pressure The CGS unit of pressure is the barye (Ba), equal to 1 dyn·cm −2 or 0.1 Pa. Pressure is sometimes expressed in grams-force or kilograms-force per square centimetre (g/cm 2 or kg/cm 2) and the like without properly identifying the force units. But using the names kilogram, gram, kilogram-force, or gram-force (or their symbols) as units of force is expressly forbidden in SI.
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Bar (unit) The bar is a metric unit of pressure, but is not approved as part of the International System of Units (SI). It is defined as exactly equal to 100,000 Pa, which is slightly less than the current average atmospheric pressure on Earth at sea level.[1][2]
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Grayscale Not to be confused with Gray code. For variations of the base color, see shades of gray. In photography and computing, a grayscale or greyscale digital image is an image in which the value of each pixel is a single sample, that is, it carries only intensity information.
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How Many? A Dictionary of Units of Measurement Â© Russ  Rowlett and the University of North Carolina at Chapel  HillTable of  ContentsAbout the DictionaryUsing the DictionaryH a metric unit of pressure equal to 100 pascals or 0.1 kilopascal (kPa). The hectopascal, used almost entirely in measurements of air pressure, is identical to the millibar (mb). The millibar has been used to measure air pressure for many years, but it is not an SI unit.
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Pressure The standard unit for pressure is the Pascal, which is a Newton per square meter. For an object sitting on a surface, the force pressing on the surface is the weight of the object, but in different orientations it might have a different area in contact with the surface and therefore exert a different pressure.or an object sitting on a surface, the force pressing on the surface is the weight of the object, but in different orientations it might have a different area in contact with the surface and therefore exert a different pressure.
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- The main units are kilopascals (kPa), atmospheres (atm), millimeters of mercury (mmHg), and sometimes Torr. The kilopascal is a unit for pressure derived from physics. Pressure is defined as a force exerted over an area. The larger the force, the greater the pressure. But, if the force is concentrated over a small area the pressure is also great. As an example, imagine trying to pop a balloon with a needle vs. with a soda can. If you use the same amount of force, the needle will be far more effective. The unit for force is the Newton (N), so the unit pascal (Pa) for pressure is defined as: 1Pa=(1N)/(1m^2) This is actually a really low pressure, as it turns out.
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Pressure Presently or formerly popular pressure units include the following: 1  atmosphere (atm) 2  manometric units: centimetre, inch, millimetre (torr) and micrometre (mTorr, micron) of mercury, height of equivalent column of water, including millimetre (mm H. 2O), centimetre (cm H. 2O), metre, inch, and foot of water;
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Gases Study Guide Pressure is a measure of the amount of force per unit area. For gases, the pressure of a gas is the amount of force the gas exerts on a surface within its volume. Gases with high pressure exert more force than gase with low pressure. Units of Pressure: The SI unit of pressure is the pascal (Symbol Pa). The pascal is equal to the force of 1 newton per square meter.
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Atmosphere (unit) Scuba divers and others use the word atmosphere and atm in relation to pressures that are relative to mean atmospheric pressure at sea level (1.013 bar). For example, a partial pressure of oxygen is calibrated typically using air at sea level, so is expressed in units of atm.The old European unit technical atmosphere (at) is equal to 1 kilogram-force per square centimetre (kgf/cm 2), 7004980665000000000♠98066.5 Pa.or example, a partial pressure of oxygen is calibrated typically using air at sea level, so is expressed in units of atm. The old European unit technical atmosphere (at) is equal to 1 kilogram-force per square centimetre (kgf/cm 2), 7004980665000000000♠98066.5 Pa.
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Atmospheric Pressure Pressure is generally measured in units of Pascals. Atmospheric scientists, however, like to express pressure in units of bars. For the record, 1 Pascal = 1 Newton per square meter, and 1 bar = 100,000 Pascals. The average atmospheric pressure at the surface of the Earth is approximately 1 bar.
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Atmosphere (unit) The standard atmosphere (symbol: atm) is a unit of pressure defined as 101325 Pa (1.01325 bar).It is sometimes used as a reference or standard pressure.he standard atmosphere (symbol: atm) is a unit of pressure defined as 101325 Pa (1.01325 bar).
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Pressure prefixes | length | area | volume | weight | temperature | time | energy | power | density | velocity | acceleration | force. • Conversions of pressure or stress units •. Pressure conversion p = F / A = force divided by area. The SI unit for pressure is the pascal (Pa), equal to one newton per square metre (N/m²).