iGCSE Physics - 2.1.2 Particle Model

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Unit 2.1.2 Particle Model CORE

Describe the particle structure of solids, liquids and gases in terms of the arrangement, separation and motion of the particles and represent these states using simple particle diagrams

Describe the relationship between the motion of particles and temperature, including the idea that there is a lowest possible temperature (−273°C), known as absolute zero, where the particles have least kinetic energy

Describe the pressure and the changes in pressure of a gas in terms of the motion of its particles and their collisions with a surface

Know that the random motion of microscopic particles in a suspension is evidence for the kinetic particle model of matter

Describe and explain this motion (sometimes known as Brownian motion) in terms of random collisions between the microscopic particles in a suspension and the particles of the gas or liquid