physics materials 3.0 / 5 based on 2 ratings ? PhysicsMaterialsASEdexcel Created by: daniel austinCreated on: 02-12-12 17:54 what is the equation for hooks law f = kx k = elastic constant for that material x = extention 1 of 16 what is hooks law hooks law showes that the force aplied to a material is directly proportional to the extention upto the elastic limit 2 of 16 what does malliable mean a material that has averry little elastic deformation and a large plastic deformation before breaking the graph is just a curv and no strate line 3 of 16 what is elastic deformation after a material is streched it will go back to its original shape this is the strate line on a graph 4 of 16 what is plastic deformation after a material is streched it will go back to its original shape 5 of 16 what is a brittle material a material that shows no plastic deformation and verry little elastic deformation before breaking 6 of 16 what is a tough material a material that needs a large force on it ti deform it 7 of 16 what is the equation of stress s = f/a f = force a = cros sectional area s is measured in pa 8 of 16 what is the equation of strain sr = x/l x = extention l = original length sr has no units 9 of 16 what is the equation for the young modulus young modulus = stress/strain young modulus is measured in Pa 10 of 16 what is laminar flow when a fluid flows in a strate line the velocity at any 1 point will be constant over time 11 of 16 what is turbulant flow when the fluid mixes and the velocity at any point will change over time 12 of 16 what is formed in turbulant flow eddie currents or werls 13 of 16 what is a hydrometer a device that has a constant mass that will float at diferent heights in diferent dencities of liquid 14 of 16 what is terminal velosity when an object canot exelerate any more due to viscouse drag or air resistance 15 of 16 what is the equation of stokes law F = 6πrἠv r = radius of sphere v = velocity of sphere ἠ = coefician of velocity in Pas F = viscouse drag 16 of 16
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