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 . Meters at Combined Temperature & Pressure. Calibration. Stand Update. Tony Wright. Customer Services Manager. Agenda. Background. Project requirements. Calibration Process. Current status. Test plan. 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. Viscous Fluids. Viscosity is how engineers measure the resistance of fluids when being . deformed:. τ. = . μ. (du/dy. ). The less viscous the fluid, the greater its ease of . movement.. Viscosity is useful for calculating the force needed to move a fluid. For example, in these industries: . 2. The denser the atmosphere…. the greater its weight, and . the greater its air pressure.. 3. atmospheric pressure -. . a.k.a. .; . barometric pressure or air pressure.. the pressure due to the weight of the overlying atmosphere.. Hint, don’t forget to find the volume of the ice first!. ). Warm Up: Density of Ice. Does the density of ice you calculated make sense? Why or why not?. Warm Up: Density of Ice. Draw a dot diagram to compare the density of ice and water.. 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. . I Density(D). An object’s mass compared to its volume. On Earth we can sometimes use weight for mass.. IV Density Facts. Things with . HIGH Density. : Bowling Ball Shot put. Big Marble. Things with . Viscosity is how engineers measure the resistance of fluids when being . deformed:. τ. = . μ. (du/dy. ). The less viscous the fluid, the greater its ease of . movement.. Viscosity is useful for calculating the force needed to move a fluid. For example, in these industries: . 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!!!. 1. A piece of tin has a mass of 16.52 g and a volume of 2.26 cm. 3. . What is the density of tin? . Given. Mass= 16.53g Volume 2.26cm. 3. Unknown . D=?. Equation. D=M/V. Sub and Solve. D=16.53g/2.26cm. Mass, Volume & Density. Think About It…. Would you rather kick a bowling ball or a soccer ball?. Would you rather carry around a kilogram of feathers or a kilogram of lead? Explain.. I. Vocabulary . Matter is what the universe is made of.. Matter is anything that has mass and volume.. Examples include just about everything (any solid, liquid or gas).. Example of things that are not matter include electricity, sound and light.. 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.