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Brainlag Learn / GCSE Physics

Particle model, density and gas pressure

Density and its required practical, changes of state, specific latent heat and the particle model of gas pressure.

Lessons

  1. Density and the particle modelHow tightly packed the mass is: ρ = m ÷ V, the particle model of solids, liquids and gases, and changing g/cm³ into kg/m³. 20 min, free
  2. Required practical: measuring densityFinding the density of regular shapes, irregular objects and liquids, with repeats, anomalies and uncertainty. 25 min, free
  3. Changes of state and internal energyInternal energy, heating and cooling curves, and why the temperature stops rising while a substance melts or boils. 20 min, Plus
  4. Specific latent heatThe energy to melt or boil a substance without changing its temperature, E = mL, and finding L with a heater. 25 min, Plus
  5. Gases: temperature and pressureParticles moving at random, what pressure is, why a hotter gas in a sealed container has a higher pressure, and the kelvin scale. 20 min, with the Gas laws simulation, Plus
  6. Pressure and volume of a gasSquashing a gas at constant temperature, p₁V₁ = p₂V₂, and why doing work on a gas warms it. 20 min, Plus, Physics only

Practise and test

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