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Physics · Triple Science

Particle Model of Matter

Spec 4.3 Paper 1 📙 Higher

Subtopics

Density of MaterialsSpec 6.3.1.1Define density and calculate it from mass and volume for solids and liquids. + Changes of StateSpec 6.3.1.2Describe changes of state in terms of particles and explain why mass is conserved. + Internal EnergySpec 6.3.2.1Define internal energy and explain how heating affects a system. + Temperature Changes and Specific Heat CapacitySpec 6.3.2.2Use ΔE = mcΔθ to calculate energy changes when substances are heated or cooled. + Changes of State and Specific Latent HeatSpec 6.3.2.3Define specific latent heat and calculate energy for changes of state using E = mL. + Particle Motion in GasesSpec 6.3.3.1Explain gas pressure in terms of particle motion and describe how temperature and volume affect pressure. +

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Key Equations

ρ = m/V

E = mcΔθ

E = mL

pV = constant (Boyle's law)

p/T = constant

⭐ Higher Tier Content

Gas pressure and volume relationships

Absolute zero

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