Random motion of gas molecules
Random motion of gas molecules

Gas molecules are far apart compared with their size and move constantly in random directions. They travel in approximately straight lines between collisions with other molecules or with the container walls.
Step-by-step lessons on AQA GCSE Physics 3.3.1 Particle motion in gases. Each one builds up to exam-style questions. Build a strong grip on equations, units and Key Stage 3 fundamentals before tackling the more demanding topics like electromagnetism, the particle model of matter and space physics.