Phases of Matter. Matter can take 4 different phases or states: – Solid – Liquid – Gas – Plasma.
Phases of matter
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Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley. Phases of matter Higher order solid liquid gas T Lower order
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Phases of matter. Higher order. Lower order. solid. liquid. gas. T. some positional and orientational order. orientational order. Nematic. Smectic A. Smectic C. liquid. T. Mesophases. Thermotropic Liquid crystals. solid. Straw Pressure. - PowerPoint PPT Presentation
Transcript of Phases of matter
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
Phases of matter
Higher order
solid liquid gas
T
Lower order
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
NematicSmectic ASmectic Csolid liquid
T
Mesophases
some positional and orientational order
orientational order
ThermotropicLiquid crystals
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
Straw Pressure
If you put your finger on top of a drinking straw submerged in water, you can hold the water in the straw when you draw it out of the water.
• Draw a force diagram to show why this happens• If the water in the straw is 10cm high, what it the
pressure at the top and the bottom of the straw?
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
HydraulicsConsider a hydraulic lift, such as the one that lifts your car at the repair shop. The system is in static equilibrium if
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley.
Lifting a car
The hydraulic lift at a car repair shop is filled with oil. The car rests on a 25-cm-diameter piston. To lift the car, a force is applied to push down on a 6 cm diameter piston.•What force will support a 1300 kg car level with the small piston?•If you lift the car up by 2m, by how much do you need to push the small piston?
