Details Title: Chapter 13 Description: Pressure Total Flash Cards: 19 Created: 03/10/2008 20:19:00		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Physics Flashcards
Cards in this set: Term fluids Definition materials that flow and have no definate shape of their own Term pressure Definition the force on a surface, divided by the area of the surface. Term fluids Definition materials that flow and have no definate shape of their own Term pascal Definition the unit of pressure in the SI system which is 1 N/m^2 Term combined gas law Definition the combination of Boyle's law and Charles's law relating pressure, temperature, and volume of a fixed amount of ideal gas Term ideal gas law Definition pressure times the volume is equal to the number of moles multiplied by the constant R and the Kelvin temperature   PV=nRT  Term thermal expansion Definition when heated all forms of matter generally become less dense and expand to fill more space Term cohesive forces Definition the electromagnetic forces of attraction that like particles exert on one another; responsable for surface tension and viscosity Term adhesive forces Definition electromagnetic attractive forces that act between particles of different substances exerted on one another; responsible for capillary action Term pascals principal Definition any change in pressure applied at any point on a confined fluid is transmitted undiminished throughout the fluid Term buoyant force Definition increase in pressure with increasing depth creates this upward force. Term archimedes' principle Definition an objectimmersed in a fluid has an upward force on it that is equal to the weight of the fluid displaced by the object Term bernoulli's principle Definition as the velocity of a fluid increases, the pressure exerted by that fluid decreases Term streamlinesthe Definition flow of fluids around objects Term crystal lattice Definition a fixed, regular pattern formed when the temperature of a liquid is lowered, the average kinetic energy of its particles decreases and, for many solids, the particles become frozen but do not stop moving, but instead vibrate in fixed location Term coefficient of volume expansion Definition equal to the change in volume divided by the original volume and the change in temperature Term coefficient of linear expansion Definition equal to the change in length, divided by the original length and the change in temperature Term plasma Definition a gaslike, fluid state of matter  made up of negatively charged electrons and positively charged ions that can conduct electricity; makes up most of the matter in the universe, such as stars Term amorphous solid Definition a substance having a definate shape and volume, but lacking a regular crystal structure