Jessica

HS-PS2-1

fluid pressure

fluid pressure formula

hydraulic pressure

gravity and fluid pressure

manometer

calculate fluid pressure

# Fluid Pressure Study Guide

The pressure inside a fluid caused by the fluid's weight is referred to as fluid pressure.

## INTRODUCTION

Fluid pressure is the pressure that a fluid exerts at any point within it. The product of the difference in height, density, and free-fall acceleration determines the difference in pressure between the two levels.

Furthermore, hydraulic systems and variations in the fluid's velocity might cause the fluid pressure to be amplified. The manometer is the device used to measure fluid pressure.

## THE FORMULA FOR FLUID PRESSURE Source

Fluid Pressure Formula

Pfluid = P ρgh

where

P = reference point’s pressure

Pfluid = fluid pressure absorbed at the point

Ρ = fluid density

g = accelerated gravity

h = Altitude from a reference point

Divide the mass of the liquid under consideration by the volume of the liquid under consideration to determine Liquid density.

ρ = m / v

m = Liquid mass

v = Considered liquid volume

At liquid atmospheric pressure, the system’s total pressure is:

Liquid = Po + ρgh

Where

Po = Atmospheric pressure

## CONDITIONS FOR CONSIDERING HYDRAULIC PRESSURE

Two scenarios that need to be considered are considered.

1. Open channel or open channel flow

2. Closed channel or channel affected

## EFFECT OF GRAVITY ON FLUID PRESSURE

Gravity's influence on fluid pressure is that it causes the fluid body to move in the opposite direction of its net acceleration. It also depicts the fluid pressure variation as a function of depth.

# SUMMARY

• The pressure inside a fluid caused by the fluid's weight is referred to as fluid pressure.
• The pressure that a fluid exerts at any point within it. The product of the difference in height, density, and free-fall acceleration determines the difference in pressure between the two levels.
• Furthermore, hydraulic systems and variations in the fluid's velocity might cause the fluid pressure to be amplified. The manometer is the device used to measure fluid pressure.

## FAQ’s

Q. What are the factors affecting fluid pressure?

Fluid pressure is influenced by two things. They are the fluid's depth as well as its density. At greater depths, a fluid exerts more pressure. As you get deeper into a fluid, all of the fluid above it presses down on you.

Q. What are the methods for calculating fluid pressure?

Use the formula pgh = fluid pressure to compute fluid pressure, where p is the density of the liquid, g is the acceleration of gravity, and h is the fluid's height. To solve the equation, multiply the variables and obtain the product of the three.

Q. Why does fluid flow?

The density differential between liquid and solid (shrinkage flow) or the impact of gravity on density gradients within the fluid phase itself can generate fluid flow during solidification.

Q. Where can we use fluid pressure?

In automotive brakes, the liquid pressure is applied. When a vehicle's brakes are deployed, the car comes to a halt due to liquid pressure. ii. Injection syringes are filled at atmospheric pressure.

Q. Explain how fluid pressure works?

Fluid particles move in all directions at random all of the time. The particles continue to collide with each other and anything else in their path as they advance. These impacts create pressure, which is distributed evenly in all directions.

We hope you enjoyed studying this lesson and learned something cool about Fluid Pressure! Join our Discord community to get any questions you may have answered and to engage with other students just like you! We promise, it makes studying much more fun😎

## REFERENCE:

1. Fluid Pressure:https://byjus.com/physics/fluid-pressure/#:~:text=There%20are%20two%20factors%20that,lighter%20fluids%20such%20as%20air. Accessed 13th April 2022.
2. Fluid Pressure: https://www.vedantu.com/physics/fluid-pressure  Accessed 13th April 2022.