PPT-Behavior of Fluids: Pressure, Density, and Volume

PES 1000 Physics in Everyday Life Macroscopic vs Microscopic Quantities We have been studying the motion of regularsized macroscopic objects We know these objects are made up of countless atoms and molecules . The . concentrationof. matter in an object is known as . density. .. Computing Density. . Density = . mass (. g. ) . volume (cm. 3. ). DETERMINE VOLUME. :. One way to determine volume is to use a graduated cylinder to determine . Part 2. Fluids . Pg. 66 in textbook. Can you give some examples of fluids that you know and see everyday?. Fluids. Fluid: is a substance that has the capacity to flow and assume the form of the container into which it has been poured. Fluids are a collection of randomly arranged molecules held together by . weak . cohesive forces. This is unlike crystals (solids) which arrange orderly on a lattice). Pressure, Pascal’s law. Buoyant forces and Archimedes Principle. . Fluids at rest .  Fluid Statics. Why things float .  . Archimedes’ Principle. . Fluids in Motion .  . Fluid Dynamics. Hydrodynamics. Aerodynamics. 1. Review: Archimedes principle. . Fluids. A fluid is anything that flows: liquids and gases. One . common characteristic is that fluids have no fixed shape and are easily . deformed: . t. ake the shape of their containers.. Density. The density of a substance is the quantity of matter contained in a unit volume of the substance. . . Fluids at rest .  Fluid Statics. Why things float .  . Archimedes’ Principle. . Fluids in Motion .  . Fluid Dynamics. Hydrodynamics. Aerodynamics. 1. Review: Archimedes . principle. . Pages 66 – 84 in textbook.. A substance that has the capacity to flow and assume the form of the container into which it has been poured.. What is a fluid?. Water, milk, blood and saliva. Gases are also considered fluids: air, helium and ozone.. We can measure . mass. by using a balance or a digital scale. . Volume. Volume . is a measurement of the amount of space occupied by the substance. . How can we measure volume?. Liquids . can be measured using a measuring cup or a graduated cylinder. . Which one of these weighs more???. A kg of bricks or a kg of feathers?. Both of the objects are 1 kg… so they both weight the same. . So why do we want to say bricks????. A kg of bricks may not weigh more, but it does have a higher density!!!.  Fluid Statics. Why things float .  . Archimedes’ Principle. . Fluids in Motion .  . Fluid Dynamics. Hydrodynamics. Aerodynamics. 1. Example. : What does 1 liter (about a quart) of water weigh?. Behavior of Gases Chapter 3.2 Behavior of Gases What behaviors do gases display? Do they behave the same all the time? What variables are involved with gas behavior? Variables Pressure – the amount of collisions between gas particles and walls of the container (balloon). Measured in kilopascals ( L-14 Fluids - 3 Fluids at rest  Fluid Statics Why things float  Archimedes’ Principle Fluids in Motion  Fluid Dynamics Hydrodynamics Aerodynamics 1 Review: Archimedes principle  lean. - . 70% of Body wt. is water. Fatty animals – Less body Water – As low As 40%. TOTAL BODY WATER. Body water content influenced by. Species. Food habits. Age. Nutritional status. Environment. gases. sand, snow, or grain (granular materials). FLUIDS .  . STUFF THAT FLOWS. FLUIDS. 1. States of Matter. Comes in three states – solid, liquid, gas. So far we have only dealt with . solid.