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1. a. : the burden of physical or mental distress. b. : the constraint of circumstance : the weight of social or economic imposition. 2. : the application of force to something by something else in direct contact with it : compression. 3. archaic : impression, stamp.
Pressure is the amount of force applied perpendicular to the surface of an object per unit area. The symbol for it is "p" or P. [2] The IUPAC recommendation for pressure is a lower-case p. [3] However, upper-case P is widely used.
pressure, in the physical sciences, the perpendicular force per unit area, or the stress at a point within a confined fluid. The pressure exerted on a floor by a 42-pound box the bottom of which has an area of 84 square inches is equal to the force divided by the area over which it is exerted; i.e., it is one-half pound per square inch.
PRESSURE definition: 1. the force you produce when you press something: 2. the force that a liquid or gas produces when…. Learn more.
The force per unit area that one region of a gas, liquid, or solid exerts on another. Pressure is usually measured in Pascal units, atmospheres, or pounds per square inch.
The pressure definition in science is force per unit area. Its usual units are newtons per square meter or Pascals. By definition, pressure is the perpendicular or normal force applied per unit area to a surface. Typical symbols for pressure are P or p.
What is Pressure? Have you ever wondered why our knives need to be so sharp or why the nails we use the end with a sharp point? The answers to all these questions lie in the concept of pressure. It is the ratio of the force applied to the surface area over which the force is applied. We can define pressure as: