1 / 9

Fluids

Fluids. Characteristics. Characteristic Property - A characteristic property is a physical or chemical property that is unique to a particular substance A fluid is anything that flows To move or run smoothly with unbroken continuity, as in the manner characteristic of a fluid.

luigi
Download Presentation

Fluids

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Fluids

  2. Characteristics • Characteristic Property - A characteristic property is a physical or chemical property that is unique to a particular substance • A fluid is anything that flows • To move or run smoothly with unbroken continuity, as in the manner characteristic of a fluid • Includes liquids and gases • When a fluid is at rest it is flat on a surface • Some solids seem to flow • Sand, sugar, flour etc • DEMONSTRATION TIME • Solids pile up instead of expanding to fill the container

  3. Characteristics • Fluids may be described by their many other properties as well, such as • Density • Viscosity • Flow rate • Buoyant force • These fluid properties depend on the particles and the particle properties • Size • Spacing • Speed • attraction

  4. Characteristics • We harness fluids’ unique properties to make our lives easier • They also make it possible for the human body to function

  5. Changes of State • All matter exists in one of 3 states • Solid • Liquid • Gas • And the odd one – Plasma – similar to a gas, but a certain portion of the particles are ionized • All mater can move between the three states by either adding heat to it, or removing heat from it • See the chart to the right? • We’ll come back to it

  6. Particle Theory of Matter • Matter is anything that has mass and takes up space The Particle Theory of Matter: 1. Matter is made up of tiny particles (Atoms & Molecules) 2. Particles of Matter are in constant motion. 3. Particles of Matter are held together by very strong electric forces 4. There are empty spaces between the particles of matter that are very large compared to the particles themselves. 5. Each substance has unique particles that are different from the particles of other substances 6. Temperature affects the speed of the particles.  The higher the temperature, the faster the speed of the particles

  7. Particle Theory and States • SOLID STATE  • Particles are held in place by strong bonds and are densely packed together • Particles vibrate constantly due to their internal energy but they cannot move from one place to another • Particles possess only vibrational energy

  8. Particle theory and states • LIQUID STATE • Particles are kept together by forces of attraction that are weaker than those of solid particles • Within the walls of the  container they can move from place to place bumping into the sides of the container and into other particles.  • This type of energy is called translational energy.  • This energy gives a liquid  the ability to flow and be poured and to spread when a liquid is spilled.  • Liquid particles also have vibrational energy.

  9. Particle theory and states • GAS STATE • Particles are "more rarefied" than either liquids or solids.  • This means that the forces of attraction that hold them together are very weak and that the spaces between them are much larger than the spaces between solid and liquid particles. • Particles can move  from  place to place within a container bumping against the walls of  the container and against other particles. • They rotate and vibrate at the same time.  • Particles of gases have rotational, translational and vibrational energy.  • This explains why they can escape from a container very easily and they can put pressure on the side of the container (example a balloon or a tire).

More Related