Notes in 05 Materials

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Status	Last Update	Fields
Published	01/09/2024	formula for density{{c1::ρ = m/vwhere: ρ = density(kg/m3)m = mass(kg)v = volume(m3)}}
Published	01/09/2024	how to convert cm3 to m3{{c1::cm → m ( ÷ 100)}}{{c1::cm2 → m2 ( ÷ 1002)}}{{c1::cm3 → m3 ( ÷ 1003)}}
Published	01/09/2024	convert 1 g cm-3 to kg m-3{{c1::cm3 → m3 ( ÷ 1003)}}{{c1::1g is multiplied by 1003 → 1000000g}}{{c1::1000000g → (÷1000) → 1000kg}}
Published	01/09/2024	formula for hooke's law{{c1::F = kewhere: F = Force(N)k = Spring Constant(Nm-1)e = Extension(m)}}
Published	01/09/2024	e4f7e2deefb44c118b16956e83b07d02-oa-1
Published	01/09/2024	how to find extension of springs connected in series{{c1::1/k1 + 1/k2 + 1/k3 = 1/k(total) [NOTE: after adding fraction, cross multiply]}}{{c1::F = ke}…
Published	01/09/2024	how to find extension of springs connected in parallel{{c1::k1 + k2 + k3 = ktotal}}{{c1::F = ke}}
Published	01/09/2024	two forces that can act on springs{{c1::tensile force(stretches spring)}}{{c1::compressive force(squashes spring)}}
Published	01/09/2024	tensile force{{c1::stretching force(acts on springs)}}
Published	01/09/2024	2080c75073204e628df5506c14e553da-oa-1
Published	01/09/2024	2080c75073204e628df5506c14e553da-oa-2
Published	01/09/2024	what does gradient of force by extension graph show{{c1::spring constant, k}}
Published	01/09/2024	limit of proportionality{{c1::point beyond which force is no longer proportional to extension}}{{c1::point beyond which force-extension graph is no lo…
Published	01/09/2024	elastic limit{{c1::point past which if you increase the force, material will be inelastically deformed//plastically deformed }}
Published	01/09/2024	difference between elastic deformation and inelastic deformation{{c1::Elastic: after force is removed object will return to its original shape}}{{c1::…
Published	01/09/2024	does a elastic material have to obey hookes law{{c1::no - e.g. rubber bands are elastic but only obey hooke's law for really small extensions}}
Published	01/09/2024	find density of regular solid {{c1::measure mass using mass balance}}{{c1::measure dimentions using vernier calipers and calculate volume}}{{c1::…
Published	01/09/2024	find density of liquid{{c1::measure mass of empty measuring cylinder}}{{c1::pour liquid into cylinder and measure massmass of liquid and measuring cyl…
Published	01/09/2024	find density of irregular solid{{c1::measure mass of object}}{{c1::fill measuring cylinder with water and measure initial volume}}{{c1::immerse object…
Published	01/09/2024	how to find density of an alloy{{c1::ρ = total mass / total volume}}
Published	01/09/2024	e2c7587a2931464eaf5af1bd46c07ecb-ao-1
Published	01/09/2024	e2c7587a2931464eaf5af1bd46c07ecb-ao-2
Published	01/09/2024	e2c7587a2931464eaf5af1bd46c07ecb-ao-3
Published	01/09/2024	9e7e9875068844448966dc4c745fa453-ao-1
Published	01/09/2024	tensile stress{{c1::force applied per unit cross sectional areaStress = F / AWhere:Stress = (Nm-2)F = Force(N)A = Cross sectional area(m2)}}
Published	01/09/2024	formula for tensile strain{{c1::Strain = ΔL / LWhere:ΔL = extension(m)L = original length(m)}}
Published	01/09/2024	units of stress{{c1::N/m2}}{{c1::Pa(pascals)}}
Published	01/09/2024	59e17c30e35c4cedb76f14bd21deff13-ao-1
Published	01/09/2024	59e17c30e35c4cedb76f14bd21deff13-ao-2
Published	01/09/2024	ultimate tensile stress{{c1::maximum stress and object can withstand}}
Published	01/09/2024	where would you find ultimate tensile stress{{c1::highest point on graph of stress to strain}}
Published	01/09/2024	1 MPa = {{c1::1×106}}Pa
Published	01/09/2024	elastic strain energy{{c1::energy stored in material → result of work done stretching material before limit of proportionality}}
Published	01/09/2024	elastic strain energy//elastic potential energy on force extension graph{{c1::area under force extension graph}}
Published	01/09/2024	three formulas used to calculate energy stored in springs{{c1::1/2 · k · e2}}{{c1::1/2 · F · e}}{{c1::1/2 · F2 · 1/k}}
Published	01/09/2024	difference between elastic limit and limit of proportionality{{c1::elastic limit → lets us know if spring can go back to original position after force…
Published	01/09/2024	d66ec31ae4a74aba95eb5963f4ce33c1-oa-1
Published	01/09/2024	d66ec31ae4a74aba95eb5963f4ce33c1-oa-2
Published	01/09/2024	d66ec31ae4a74aba95eb5963f4ce33c1-oa-3
Published	01/09/2024	conservation of energy/work done in elastic deformation{{c1::work done on material stored in Ep of material::force applied}}{{c1::when force is remove…
Published	01/09/2024	conservation of energy/work done in inelastic//plastic deformation{{c1::work done to seperate atoms}}{{c1::energy is not stored as elastic potential e…
Status	Last Update	Fields