Pressure
Pressure is the measure of force applied over a given area. The formula used to determine pressure is:
Pressure = Force/Area
When force remains constant, pressure and area are inversely related. If the area expands, pressure diminishes. Conversely, when area remains constant, pressure and force are directly related. An increase in force results in a proportional increase in pressure.
The standard unit of pressure is the pascal (Pa), where 1 Pa = 1 N/m2.
Pressure in Liquids
As you descend further below the surface of a liquid, the pressure increases. This rise in pressure is directly linked to the depth and is caused by the combined weight of the liquid above pressing down.
Essentially, the deeper you go, the more liquid there is above you, leading to increased force and, consequently, higher pressure.
To calculate pressure in liquids, we use the subsequent formula:
Change in pressure = Density × Gravity × Change in depth
Δp = ρgΔh
Where:
- Δp denotes the change in pressure.
- ρ signifies density.
- g represents the acceleration due to gravity.
- Δh denotes the change in depth.
Alternative to Practical Topical Simulation for Pressure
In the following simulation, you will be able to learn how pressure changes in water corresponding to its depth.
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