Pressure | Definition, Measurement, & Types | Britannica
网页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 - Wikipedia
网页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中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页pressure noun (PUSHING) Add to word list. C2 [ U ] the force you produce when you press something. 压力. He put too much pressure on the door handle and it snapped. 他用力过猛，把门把手弄断了。. You can stop bleeding by applying pressure close to the injured area. 压住伤口边缘可以止血。.
Meaning of pressure – Learner’s Dictionary - Cambridge Dictionary
网页PRESSURE definition: 1. attempts to make someone do something by arguing, persuading, etc: 2. difficult situations that…. Learn more.
11.6: Gauge Pressure, Absolute Pressure, and Pressure Measurement
网页2022年2月20日 · Definition: Gauge Pressure. Gauge pressure is the pressure relative to atmospheric pressure. Gauge pressure is positive for pressures above atmospheric pressure, and negative for pressures below it. In fact, atmospheric pressure does add to the pressure in any fluid not enclosed in a rigid container.
Pressure - The Physics Hypertextbook
网页A solid in contact with a fluid experiences a force all over its outer surface. Pressure is the ratio of the force applied to the area over which it is exerted.
PRESSURE中文(繁體)翻譯：劍橋詞典 - Cambridge Dictionary
网页pressure noun (PUSHING) Add to word list. C2 [ U ] the force you produce when you press something. 壓力. He put too much pressure on the door handle and it snapped. 他用力過猛，把門的把手弄斷了。. You can stop bleeding by applying pressure close to the injured area. 壓住傷口邊緣可以止血。.
11.3: Pressure - Physics LibreTexts
网页2022年2月20日 · Pressure is the force per unit perpendicular area over which the force is applied. In equation form, pressure is defined as \ (F=PA\). The SI unit of pressure is pascal and \ (1\, Pa = 1 \space N/m^2\).
11.3 Pressure - College Physics 2e - OpenStax
网页Pressure is defined as the force divided by the area perpendicular to the force over which the force is applied, or. P = F A. 11.7. A given force can have a significantly different effect depending on the area over which the force is exerted, as shown in Figure 11.5. The SI unit for pressure is the pascal, where. 1 Pa = 1 N/m 2. 11.8.
Pressure measurement - Wikipedia
网页Pressure measurement is the measurement of an applied force by a fluid (liquid or gas) on a surface. Pressure is typically measured in units of force per unit of surface area. Many techniques have been developed for the measurement of pressure and vacuum.