Home
Back
Pressure Formula:
| From: | To: |
Pressure is defined as the force applied perpendicular to the surface of an object per unit area. It is a fundamental concept in physics and engineering, measured in pascals (Pa) in the International System of Units.
The calculator uses the pressure formula:
Where:
Explanation: Pressure increases with greater force and decreases with larger surface area. This principle explains why sharp objects penetrate more easily than blunt ones.
Details: Pressure calculations are essential in various fields including mechanical engineering, fluid dynamics, construction, and medical applications. Understanding pressure helps design safer structures, efficient hydraulic systems, and proper medical equipment.
Tips: Enter force in newtons and area in square meters. Both values must be positive numbers greater than zero. The calculator will compute the pressure in pascals.
Q1: What is the SI unit for pressure?
A: The SI unit for pressure is the pascal (Pa), which is equivalent to one newton per square meter (N/m²).
Q2: How does pressure relate to everyday life?
A: Pressure affects many daily activities - from tire pressure in vehicles to blood pressure in medical contexts, and atmospheric pressure in weather systems.
Q3: What is the difference between pressure and force?
A: Force is the total push or pull on an object, while pressure is the force distributed over a specific area. The same force can create different pressures depending on the contact area.
Q4: Can pressure be negative?
A: In most physical contexts, pressure is positive. However, gauge pressure can be negative relative to atmospheric pressure, and absolute pressure is always positive.
Q5: What are common pressure units besides pascals?
A: Common units include bar, psi (pounds per square inch), atm (atmospheres), and mmHg (millimeters of mercury) for blood pressure measurements.