properties of fluids. fluid: a substance that flows and takes the shape of its container. they also...
TRANSCRIPT
![Page 1: Properties of Fluids. Fluid: A substance that flows and takes the shape of its container. They also cannot form any shapes themselves. i.e: Water and](https://reader036.vdocuments.site/reader036/viewer/2022082505/56649d9c5503460f94a84ae5/html5/thumbnails/1.jpg)
Hydraulic & Pneumatic SystemsProperties of Fluids
![Page 2: Properties of Fluids. Fluid: A substance that flows and takes the shape of its container. They also cannot form any shapes themselves. i.e: Water and](https://reader036.vdocuments.site/reader036/viewer/2022082505/56649d9c5503460f94a84ae5/html5/thumbnails/2.jpg)
Properties of FluidsFluid: A substance that flows and takes the
shape of its container. They also cannot form any shapes themselves.
i.e: Water and air are fluids, sand and sugar are not.
The study of fluids is divided into two branches:Hydraulics: The science behind the mechanical
properties of liquids.Pneumatics: The science behind the mechanical
properties of gases.
![Page 3: Properties of Fluids. Fluid: A substance that flows and takes the shape of its container. They also cannot form any shapes themselves. i.e: Water and](https://reader036.vdocuments.site/reader036/viewer/2022082505/56649d9c5503460f94a84ae5/html5/thumbnails/3.jpg)
Systems & Our Bodies
Our bodies contain natural pneumatic & hydraulic systems:
Hydraulic system: Circulatory system, blood is circulated throughout the body.
Pneumatic system: Respiratory system, air is brought in and out of the lungs.
![Page 4: Properties of Fluids. Fluid: A substance that flows and takes the shape of its container. They also cannot form any shapes themselves. i.e: Water and](https://reader036.vdocuments.site/reader036/viewer/2022082505/56649d9c5503460f94a84ae5/html5/thumbnails/4.jpg)
Kinetic Molecular Theory
Before we look at specific fluid properties, we re-examine the kinetic molecular theory which states:
1. All substances are made up of identical molecules.
2. The particles are in constant motion. Solids move the slowest -> Gases move the
fastest
3. Particles have spaces in-between them. Solids have smallest space -> Gases have
most space.
![Page 5: Properties of Fluids. Fluid: A substance that flows and takes the shape of its container. They also cannot form any shapes themselves. i.e: Water and](https://reader036.vdocuments.site/reader036/viewer/2022082505/56649d9c5503460f94a84ae5/html5/thumbnails/5.jpg)
Solid Liquid Gas
![Page 6: Properties of Fluids. Fluid: A substance that flows and takes the shape of its container. They also cannot form any shapes themselves. i.e: Water and](https://reader036.vdocuments.site/reader036/viewer/2022082505/56649d9c5503460f94a84ae5/html5/thumbnails/6.jpg)
DensityDefined as the mass per unit volume.
Given by:
Eg.1: A substance has a mass of 150g and a density of 4.5 kg/m3, what volume does it occupy?
V
mD
WhereD = density (kg / m3)m = mass (kg)V = volume (m3)
![Page 7: Properties of Fluids. Fluid: A substance that flows and takes the shape of its container. They also cannot form any shapes themselves. i.e: Water and](https://reader036.vdocuments.site/reader036/viewer/2022082505/56649d9c5503460f94a84ae5/html5/thumbnails/7.jpg)
CompressibilityThe ability of a substance to be pressed
closer together.
Gases are more compressible than liquids. Why?
Particle theory of matter states spaces between gases are larger than liquids.
These spaces can be shrunk.