Solids, Liquids and Gases 0.0 / 5 ? PhysicsSolids Liquids and GasesIGCSEEdexcel Created by: HLeiperCreated on: 07-04-14 11:55 Density mass/volume 1 of 9 Pressure force/area 2 of 9 Pressure Difference height x density x gravity 3 of 9 Pressure acts equally in all directions When in a gas or liquid 4 of 9 Molecules in a gas have random motion and exert a force putting pressure on the walls of the container 5 of 9 Absolute Zero -273 degrees because the particles have completely stopped moving 6 of 9 Increase in temperature leads to an increase in the average speed of gas molecules 7 of 9 Pressure and Volume of a fixed mass of gas at a constant temperature p1v1 = p2v2 8 of 9 Brownish Motion Movement of Particles in suspension where large heavy particles can be moved by Brownian Motion by smaller lighter particles travelling at high speeds 9 of 9
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