The action of a force against some obstacle or opposing force; a force in the nature of a thrust, distributed over a surface, often estimated with reference to the amount upon a unit's area.
The pressure on a surface due to forces from another surface or from a fluid is the force acting at right angles to unit area of the surface: pressure = force/area.
Measure of applied force compared with the area over which the force is exerted.
The force or load per unit area.
the ratio of force to the area to which the force is applied.
An increase in the force exerted on something above standard atmospheric conditions, measured as gauge pressure (psig, bar g).
the force exerted over a certain area. Our atmosphere exerts pressure on the surface of the earth, and layers of rock exert pressure on those below them.
1. A type of stress characterized by uniformity in all directions. As a measurable on a surface, the net force per unit area normal to that surface exerted by molecules rebounding from it. In dynamics, it is that part of the stress tensor that is independent of viscosity and depends only upon the molecular motion appropriate to the local temperature and density. It is the negative of the mean of the three normal stresses. The concept of pressure as employed in thermodynamics is based upon an equilibrium system, where tangential forces vanish and normal forces are equal. 2. In meteorology, commonly used for atmospheric pressure. 3. In mechanics, same as stress. 4. See radiation pressure.
Force applied over an area.
The ratio of force exerted over a unit area divided by the area. (e.g., k-pascals, pounds per square inch).
The force exerted by a column of air above the point of measurement.
A force distributed over a surface divided by the area of the surface. Confining pressure is uniform in all directions, while directed pressure is exerted in a particular direction.
Force per unit area, or the "push" acting on a material in cases where the push is the same in all directions.
Force per unit area. The SI unit of pressure is the pascal, defined as one newton per square meter. Other common pressure units are the atmosphere, the bar, and the Torr.
The ratio of force to surface area, when force is applied in a direction perpendicular to, and in the same direction as, that surface.
The amount of force pushing on an object caused by the molecules surrounding it.
is force per unit area. (See Absolute, Discharge, Gauge, Inlet, Saturated Vapor, Vapor). PROCESS occurs whenever the system undergoes either a change in state or an energy transfer at a steady state (See State). REVERSIBLE PROCESS is an ideal process that may be stopped and made to retrace its steps and restore to the systems or surroundings all work and heat previously removed. It is frictionless. An IRREVERSIBLE PROCESS is one in which a portion of the original system energy is dissipated and cannot be returned to the system through its own operation. The system and/or surroundings cannot be returned to their original state. An ADIABATIC PROCESS is one during which there is no change in temperature. An ISENTROPIC PROCESS is one wherein the entropy remains constant. An ISOTHERMAL PROCESS is one in which there is no change in temperature. POLYTROPIC PROCESS is one in which changes in gas characteristics during compression are considered.
Amount of force divided by the area the force is applied to. Example, a pail of water sitting in the sand applies pressure to the sand beneath the bottom of the pail. The 'pail' of water is 'force' and the bottom of the pail is 'area'. Place the pail on top of a soda pop can and the can on top of the sand. The area of the can's bottom is smaller so the pressure is greater and the sand is left with a deeper impression from the same force.
A measure of force per unit area. Pressure is measured in N/m2 or Pa.
Pressure is a measurement of the force an object pushes against a given area. Air pressure is commonly measured in atmospheres or "pounds per square inch", which is the force of one pound pressing against one square inch.
The force that moves the water through the system and is measured in pounds per square foot or feet of head. One foot of water depth equals .433 PSI and one PSI equals 2.31 feet of head.
force in Newton’s on an area
A measure of the weight of the air, that is usually measured with a barometer in meteorology. -- QPF Quantitative Precipitation Forecast -- Radiosonde or Rawinsonde An instrument attached to a weather balloon that transmits pressure, humidity, temperature and winds as it ascends.
The exertion of force upon a surface by a fluid (e.g., the atmosphere) in contact with it.
Measured with a pressure gauge and expressed in pounds per square inch (PSI), bars or kPa. It is the amount of energy available to move water through pipe, valves, sprinklers or other components. Static pressure is the pressure measured when no water is flowing through a closed system. Dynamic pressure is the pressure measured when the system is open, or water is flowing through the system.
Pressure () is the force acting normally on unit area of a surface. It is measured in pascals in Si units (Pa) p = F/A
In a gun or cartridge, the force imparted to various components that is developed by the expanding gases generated by the deflagration of the propellant when fired.
PSI is the scientific measure for pressure. PSI stands for pound per square inch. Pressure washers can have a PSI as high as 60,000, however most machines are between 3-4000psi.
The measurement of the force exerted by a medium on the objects in the medium. In vacuum coating, pressure refers to the pressure of the gases in the vacuum chamber. Pressure is normally measured in Torr. Other units are psi, bars, atmospheres, pascals, etc.
Or, in meteorology, atmospheric pressure or barometric pressure. A type of stress that is ideally uniform in all directions.
the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit); "the compressed gas exerts an increased pressure"
a force that compels; "the public brought pressure to bear on the government"
the act of pressing; the exertion of pressure; "he gave the button a press"; "he used pressure to stop the bleeding"; "at the pressing of a button"
to cause to do through pressure or necessity, by physical, moral or intellectual means :"She forced him to take a job in the city"; "He squeezed her for information"
exert pressure on someone through threats
the amount of force exerted on an object
Pressure is the result of Force divided by the Area the force is applied over. It is measured in Newtons per meter squared [N/m2] which is also known as a Pascal [Pa].
a compressing downward force on a body area
Amount of force used to push air through system. Measured in PSI or pressure per square inch.
the force of water, measure in PSI or foot head.
The force produced by pressing on something.
Atmospheric pressure at the Earth's material surface, measured in millibar (mbar), or hecto Pascal (hPa) in SI 1 mbar = 0.001 bar = 1 hPa = 100 Pa
The force exerted over a surface divided by the area of that surface.
the force propelling water through pipes. Common household static (non-flowing) pressure is 50 to 70 psi (pounds per square inch). Irrigation systems operate under dynamic (flowing) water pressure that is reduced with elevation gain and friction loss through rubbing on the sides of pipes. Long lengths of pipe generally result in low pressure at the ends of the run. Divide a large irrigation zone into smaller ones, minimize attached components, or choose larger diameter pipe to assure adequate dynamic operating pressures.
Atmospheric pressure reduced to mean sea level.
Force. When referring to air or atmospheric pressure... it is the weight of the air above a given point.
The result of the action of an external force on an enclosed fluid, which may be a liquid, vapor, or gas; usually expressed in pounds per square inch.
The force created on the atmosphere by gravity. It can be thought of as the "weight" of the air.
The unit for pressure is PSI (pounds per square inch), which actually determines how much pressure is directly applied on the surface being cleaned. The pressure that is delivered by the machine is directly responsible for breaking the bond between the debris and the object being cleaned. Our models typically have a pressure range from 1000 to 5000 PSI.
A unit of force applied on a given area.
Force per unit area, measured in interior ballistics terms of pounds per square inch.
SI metric measure of force per unit area, expressed in Newtons per square metre (or Pascals).
Pressure is a similar idea to stress, the force intensity at a point, except that pressure means something acting on the surface of an object rather than within the material of the object. When discussing the pressure within a fluid, the meaning is equivalent to stress. Racking: The distortion of a rectangular shape to a skewed parallelogram.
The average amount of force a fluid exerts on unit area of a surface.
To arrange your checkers so as to directly bear on an opponents blot often forcing them to move it on their next turn. It may be important to make an action play after your opponent has escaped their back men to put pressure on their future movement.
the force per unit area measured in pounds per square inch or centimeter, psi or kilograms per square centimeter, or head feet or meter.
Pressure above atmospheric pressure (gauge pressure), Unless otherwise stated is expressed in kilopascals (kPa) above atmospheric pressure, i.e. “gauge†pressure. Distribution pressures are classified under three main headings: Low Pressure LP up to but not exceeding 7 kPa Medium Pressure MP1 greater than 7 kPa but not exceeding 110 kPa MP2 greater than 110 kPa but not exceeding 210 kPa MP4 greater than 210 kPa but not exceeding 400 kPa MP7 greater than 400 kPa but not exceeding 700 kPa Intermediate Pressure IP greater than 700 kPa but not exceeding 2000 kPa High Pressure Systems are systems above 2000 kPa, and are covered by NZ Standards 5223.
The force exerted on an area by the weight of the atmosphere overhead.
Force applied to a definite area, measure in pounds per square inch (PSI). Toe - The end of a brake shoe that contacts the drum first.
Force per unit area, usually expressed in pounds per square inch (PSI) or BAR. ( 099)
In this document this term refers to a pressure which is at or above atmospheric. Any pressure reading at or above atmospheric is listed as positive; any pressure reading less than atmospheric (vacuum) is listed as negative.
The pressure exerted by the atmosphere as a consequence of gravitational attraction exerted upon the “column” of air lying directly above the point in question. As with any gas, the pressure exerted by the atmosphere is ultimately explainable in terms of bombardment by gas molecules; it is independent of the orientation of the surface on which it acts. Atmospheric pressure is one of the basic meteorological elements. It is measured by many varieties of barometer and is expressed in several unit systems. The most common unit used is the millibar (1 millibar equals 1000 dynes cm−2). Unique to the science of meteorology is the use of inches (or millimeters) of mercury, that is, the height of a column of mercury that exactly balances the weight of the column of atmosphere the base of which coincides with that of the mercury column.
A type of stress which is exerted evenly in all directions.
(1) The total load or force acting on a surface. (2) In hydraulics, unless otherwise stated, usually the pressure per unit area or intensity of pressure above local atmospheric pressure expressed, for example, in pounds per square inch or kilopascals.
Absolute — The sum of all pressures acting on an object; in diving, the sum of the atmospheric (air) pressure and the hydrostatic (water) pressure acting on a submerged object. Ambient — The absolute pressure surrounding an object. Atmospheric — Pressure exerted by the earth's atmosphere, which varies with altitude above sea level. At sea level atmospheric pressure is equal to 760 mmHg or 1.03 kg/square centimeter, or 14.7 pounds per square inch. Hydrostatic — The pressure of a column of water acting upon a body immersed in the water, equal in all directions at a specific depth.
To put pressure means to force your opponent in making move he didn't originally wanted to do. If you build several points next to your opponent's blot, he may strongly consider to move his checker from there or else he might be hit.
Refers to the water pressure in the system. The conversions for the most commonly used units are: 1 bar = 1.02kg/cm2 = 14.5psi = 0.1Mpa.
The load divided by the area over which it acts.
The force exerted on the walls of a tank, pipe, etc., by a liquid. Normally measured in pounds per square inch (psi).
The force necessary to complete the bond between the foil and the substrate, or the force necessary to press the paper into the die. (Usually measured in pounds per square inch).
any force exerted over an area.
Pressure is the amount of force that is placed on the bag's seal area as the bag is being heated and sealed. The three critical elements involved in creating a good bag seal are Pressure, Temperature, and Dwell Time (or Speed, in the case of continuous heat sealers.) On heat sealing machinery, pressure is typically created with the use of spring-loaded mechanisms or pneumatic (air) cylinders.
The force per unit area that is exerted on a surface (as that exerted against the inner wall of a container or piping system by a fluid or that exerted on a wellhead by a column of gas in the well). In the U.S., pressure is usually expressed in pounds per square inch (psi).
The application of external or internal forces to a body producing tension or compression within the body. In a fluid only compression (no tension) is possible.
(also pressure ball ) - the closest player (1st defender) needs to pressure the attacker with the ball by immediately closing down the space between the attacker and himself. This is to force the 1st attacker to focus his attention on the ball and the 1st defender rather than on the goal or his supporting attacking teammates; also known as close down
A force applied to a specific amount of surface area. A common unit of pressure is psi, i.e., pounds per square inch. The force that develops the pressure is sum total of all the slight "nudges" on a surface generated by each molecule striking the surface; the greater number of impacts or the more violent each impact, the greater the pressure. Therefore, the pressure increases if the same number of molecules are contained in a smaller space (greater number of impacts per unit area) or if the molecules are heated (each impact is more violent). Also see psi.
The force pushing on a unit area. Water pressure is normally measured in pounds per square inch (psi) or feet of head.
The thrust of expanding gasses at the time of discharge, normally stated in pounds per square inch. Chamber pressure designates the expanding gas pressure of the exploding charge as generated against the chamber walls and breechblock. This measurement is often incorrectly termed breech pressure. Residual pressure designates pressure remaining within the chamber after the bullet has left the muzzle. The measurement applied usually to automatic weapons.
The measurement of force within a system, usually expressed in Bar or Pounds per square inch (psi). Static pressure is measured when no water is flowing and dynamic pressure is measured when water is flowing. Pressure and flow are affected by each other.
The force exerted by the weight of the atmosphere, also known as atmospheric or barometric pressure.
The force exerted by the interaction of the atmosphere and gravity. Also known as atmospheric pressure.
The force exerted on the unit area of a surface. The pressure of a gas is equal to the force that its molecules exert on the walls of the containing vessel, divided by the surface area of the vessel.
Force per unit area impacting a surface, typically expressed in pounds per square inch (psi) or in MegaPascals (Mpa).
(atmospheric pressure) The pressure exerted by the weight of air above a given point, sometimes expressed in millibars (mb) or inches of mercury (Hg). The internationally recognized unit for measuring atmospheric pressure is the kilopascal.
It is the normal (perpendicular) force acting on unit area. Unit is kg/cm2 (Bar) or N/m2 (Pascal).
the applying of constant force upon a surface.
A force being exerted on part of a surface. When you stand, your feet put pressure on the ground. Air pressure refers to air molecules pressing against a surface like the bottom of a wing.
Pressure is force per unit area. This corresponds to energy per unit volume of fluid.
the force per unit area exerted by a mechanic force or a field of force.
The force developed by the expanding gases generated by the combustion of the propellant and exerted against the cartridge case, base of the bullet, chamber and bolt face.
Force exerted per unit area.
The force per unit area, expressed in pounds per square inch (psi), bars, or atmospheres.
force applied to, or distributed over a surface expressed in terms of force to area ratio.
The force per unit area. The force is perpendicular to the area.
The force per unit area. In meteorology, pressure refers to the weight of air in a column directly above a point. The standard atmospheric pressure at mean sea level is 1013.25 hPa, though surface pressures of 870 hPa (Typhoon Tip, October 1979) and 1084 hPa (Agata, Siberia, December 1968) have been recorded.
The force per unit area in a gas or liquid, typically expressed as pounds per square inch in the US. The scientific unit is newtons per m (also known as the pascal). For instance, atmospheric pressure at sea level on Earth equals 14.7 lbs./in = 1.01 x 10 newtons per m. The pressure at the center of the Sun is approximately 300 billion Earth atmospheres, or 3 x 10 16 newtons per m.
the perpendicular force per unit area
amount of force per unit area: pressure = force/area.
Force per unit area; expressed in units such as cm H2O, pascals, kilopascals, or pounds per square inch (psi).
Force in terms of force per unit area.
or more accurately, interface pressure, which is the measure of the force exerted over an area of the body due to contact with a seating support surface. If sensation is impaired, the person does not realize that they need to change position and relieve the pressure.
the application of a steady force upon another object.
The force, exerted equally in all directions, by a fluid or gas upon a unit area. For meteorological purposes, it is usually expressed in millibars (mbar) or their equivalent hectopascals (hPa). 1 mbar = 1hPa = 0.02953 inches of mercury = 100 newtons per square meter. MSL (mean sea level) pressure in the standard atmosphere is 1,013.25 mbar. The following are quantitative equivalents of normal, sea-level atmospheric pressure: 1013.25 mb 1013.25 hPA 29.921 Inches of mercury 760.00 mm of mercury 14.696 lbs per square inch 1033.2 kg per square meter Note that hPA (hectopascals) are equal to mb (millibars).
Is defined as the force acting on a surface from another mass per unit area.
Measure of unit of force per unit area exerted by combustion products during rocket motor operation, or in a propellant or pressurant tank.
The force per unit area applied on an object. Potential Energy = mass x gravity (or gravitational field strength) x hegiht[ edit] [ edit] [ edit] Speed Speed = distance / time[ edit] Torque / moment Torque = force x extension[ edit] [ edit
The energy exerted by a gas or liquid against a container
The force per unit area exerted by the weight of the atmosphere above a point on or above the earth's surface. Related terms: atmospheric pressure and barometric pressure
The force exerted by a burning charge of powder in the chamber of a gun. Expressed normally as the peak pressure in pounds per square inch (psi) or copper units of pressure (cup) depending on the test equipment.
a type of stress characterized by uniformity in all directions; in dynamics, it is that part of the stress tensor that is independent of viscosity and depends only upon the molecular motion appropriate to the local temperature and density; it is the negative of the mean of the three normal stresses, and is, therefore, a scalar quantity expressed in units of force per unit area; in meteorology, commonly used for atmospheric pressure.
As applied to boilers, the force exerted by a liquid or gas on a unit area. Three pressures may be involved: gauge pressure, the unit pressure above atmospheric pressure; absolute pressure, gauge pressure plus the atmospheric pressure; vacuum pressure; the pressure below atmospheric pressure usually expressed in inches of Hg.
1. Force exerted upon an opposing body. 2. Compression; squeezing. 3. A condition of distress.
The amount of force applied by water that is either forced by a pump, or by the gravity. Measured in pounds per square inch (PSI). PSI = vertical lift (or drop) in Feet / 2.31.
A force applied over a given area. Force per unit area measured in pounds per square inch (psi) or kilopascals (kPa).
To directly threaten an opponent's builder or blot forcing them to move it, make the point or be hit.
Pressure (symbol: p) is the force per unit area applied on a surface in a direction perpendicular to that surface.
"Pressure" is a Sponge Bob Square Pants episode from season two.