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# What is Force Per Unit Area?

Force per unit area, otherwise known as pressure, is a measure of force applied over a certain area. This type of pressure is commonly used in physics and engineering to calculate the force and pressure applied to an object or system. The unit of measurement for pressure is usually the pascal, which is equal to one newton per square meter.

## How is Pressure Measured?

Pressure is measured by multiplying the force applied over an area. To calculate pressure, you need to know both the force applied and the area on which it is applied. For example, if you were to apply a force of 10 newtons over an area of 2 square meters, the pressure would be equal to 5 pascals (10 newtons divided by 2 square meters).

## What are Some Common Uses of Pressure?

Pressure is a widely-used concept in physics and engineering, and it is used in many different applications. It is used to calculate the force needed to move objects, such as in mechanics, and it is also used to calculate the pressure needed to contain fluids, such as in fluid dynamics. It is also used to measure atmospheric pressure, which is used in meteorology and weather forecasting.

## What is Gauge Pressure?

Gauge pressure is a type of pressure measurement that is relative to atmospheric pressure. It is used in many applications, such as in car tires and air pressure gauges. Gauge pressure is usually measured in pounds per square inch (psi).

## What is Absolute Pressure?

Absolute pressure is a type of pressure measurement that is not relative to atmospheric pressure. It is measured in units of pressure relative to a perfect vacuum, such as in millibars or inches of mercury. Absolute pressure is often used in scientific research, such as in experiments with high-pressure gases.

### Conclusion

Force per unit area, or pressure, is a measure of force applied over a certain area. It is measured by multiplying the force applied over an area and is used in many different applications, such as mechanics and fluid dynamics. Pressure is also measured in different ways, such as gauge pressure and absolute pressure.