Properties of Matter
Macroscopic properties arise from microscopic forces that bind solids and permit liquid mobility after melting.
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Properties of Matter: Structure and State Change
Macroscopic properties arise from microscopic forces that bind solids and permit liquid mobility after melting.
Open article →Properties of Matter: Elasticity and Plasticity
Interatomic forces restore an elastic body after deformation, whereas a plastic body does not recover its original shape and size.
Open article →Properties of Matter: Stress, Strain and Hooke's Law
Stress measures restoring force per area, strain measures fractional deformation, and Hooke's law links them within the elastic limit.
Open article →Properties of Matter: Elastic Moduli, Poisson Ratio and Energy
Elastic moduli quantify resistance to deformation, Poisson's ratio links two strains, and elastic work is stored as energy.
Open article →Properties of Matter: Fluid Pressure, Density and Hydrostatics
Pressure is normal force per area, density is mass per volume, and hydrostatic pressure grows with vertical depth.
Open article →Properties of Matter: Pascal's Law, Buoyancy and Floatation
A pressure change spreads undiminished through a liquid, while displaced fluid produces the upthrust controlling floatation.
Open article →Properties of Matter: Viscosity and Flow Regimes
Viscosity opposes relative layer motion, while critical speed and Reynolds number distinguish streamline from turbulent flow.
Open article →Properties of Matter: Terminal Velocity, Stokes and Poiseuille
A falling body reaches terminal velocity when forces balance; Stokes describes spherical drag and Poiseuille describes capillary flow.
Open article →Properties of Matter: Surface Tension, Wetting and Capillarity
Cohesive and adhesive forces create surface energy, determine wetting through contact angle and drive capillary action.
Open article →Properties of Matter: Continuity, Bernoulli and Applications
Continuity conserves mass flow, Bernoulli conserves three energy forms, and their trade-off drives familiar devices.
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