Pascals

Definition

Pascals (Pa) are the SI unit of pressure, defined as one newton per square meter. They are used to quantify internal pressure, stress, Young's modulus, and tensile strength.

5 Must Know Facts For Your Next Test

1. Pascals are used in physical applications to measure pressure resulting from force distributed over an area.
2. The equation for pressure in Pascals is $P = \frac{F}{A}$ where $F$ is force in newtons and $A$ is area in square meters.
3. The concept of Pascals can be integrated into calculus problems involving fluid dynamics and atmospheric pressure calculations.
4. In physical applications of integration, Pascals help calculate work done by or on a system when dealing with variable pressures.
5. Pascals can be converted to other units like atmospheres (1 atmosphere = 101325 Pa) for practical applications.

Review Questions

• What is the formula to calculate pressure in Pascals?
• How are Pascals used in the context of physical applications involving integration?
• Convert a pressure of 202650 Pascals to atmospheres.

Related terms

Newton:

The SI unit of force; one newton is the force required to accelerate one kilogram of mass by one meter per second squared.

Integration: A fundamental concept in calculus that represents the accumulation of quantities and the area under curves.

Atmosphere: A unit of pressure defined as being precisely equal to 101325 Pascals. It is commonly used in meteorology and engineering.