Materials Definitions 5.0 / 5 based on 1 rating ? PhysicsMaterialsA2/A-levelEdexcel Created by: chalky-nerdCreated on: 07-07-20 09:14 Laminar flow Occurs when adjacent layers of fluid do not cross into each other 1 of 14 Turbulent flow Occurs when layers of fluid cross into each other, resulting in the formation of eddy currents or vortices 2 of 14 Viscosity Relates to a fluid's stickiness and therefore its resistance to flow 3 of 14 Elastic material A material that will return to its original dimensions when the force is removed 4 of 14 Plastic material A material that will not return to its original dimensions when the force is removed 5 of 14 Ductile material A material that can undergo significant plastic deformation before breaking, therefore can be drawn into wires 6 of 14 Malleable material A material that can be dented or hammered into shape 7 of 14 Brittle material A material that undergoes little or no plastic deformation before breaking 8 of 14 Hard material A material that does not scratch easily 9 of 14 Stiff material A material that requires a large tensile force for a small deformation 10 of 14 Elastic limit Point beyond further deformation will be plastic 11 of 14 Limit of proportionality Point on a force-extension graph where the relationship ceases to be linear 12 of 14 Order of labels on a force extension graph Limit of proportionality; Elastic limit; Yield point; Breaking force; Wire breaks 13 of 14 Stoke's law only applies when... The object is a small, slow moving sphere in laminar flow 14 of 14
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