1 / 5

13.1 Fluid Pressure

13.1 Fluid Pressure. Pressure- force distributed over an area; Pressure= F/area Pressure in Fluids Water pressure increases as depth increases The pressure of any fluid at specific depth is constant and equal pressure in every direction

osric
Download Presentation

13.1 Fluid Pressure

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. 13.1 Fluid Pressure • Pressure- force distributed over an area; Pressure= F/area • Pressure in Fluids • Water pressure increases as depth increases • The pressure of any fluid at specific depth is constant and equal pressure in every direction • Fluid pressure determined by type of fluid and depth (volume or weight does not affect pressure!) • Air Pressure in Atmosphere • Air pressure decreases as altitude increases • Atmosphere exerting 1000N of pressure on you!

  2. 13.2 Forces & Pressure in Fluids • Pascal’s Principle: a change in pressure at any point in a fluid is transmitted equally and unchanged in all directions through fluid • Hydraulic Systems • Increases output force due to constant fluid pressure exerted over larger area of the output piston http://www.google.com/imgres?q=hydraulic+lift+system+piston&hl=en&biw=1024&bih=692&tbm=isch&tbnid=nBhunNaz9GrRXM:&imgrefurl=http://www.cramster.com/answers-nov-10/physics/hydraulic-lift-designing-hydraulic-lift-automobile-garage_1036604.aspx%3Frec%3D0&docid=NggXiNge0HQo6M&imgurl=http://s3.amazonaws.com/answer-board-image/53a90a44-d431-47ca-94ba-8772efc9500a.jpeg&w=348&h=299&ei=XkI-T6rbAoXqtgfN4NTYBQ&zoom=1&iact=hc&vpx=245&vpy=296&dur=1377&hovh=208&hovw=242&tx=148&ty=225&sig=105865835399718163433&page=5&tbnh=166&tbnw=193&start=76&ndsp=20&ved=0CL4DEK0DMFc

  3. 13.2 Forces & Pressure in Fluids • Bernoulli’s Principle: as the speed of fluid increases the pressure within the fluid decreases • Airplane wings/ lift • Air over top of wing is faster then air passing under • Pressure difference causes lift= keep flying • Spray bottles • Pressure difference from chamber and tube forces solution up tube and mixes with water moving out bottle

  4. 13.3 Buoyancy • Buoyancy results in the apparent loss of weight of an object in a fluid. • Buoyant force- upward force acting against gravity • Archimedes’ Principle-buoyant force of an object = weight of the fluid displaced by the object • Density and buoyancy- object less dense than liquid floats; object is more dense than liquid it sinks; suspended if object has same density as liquid

  5. 13.3 Buoyancy

More Related