Spec J249
Revise OCR GCSE Physics 1.3.1 Molecular motion, temperature and gas pressure with the question bank and revision guides.
explain how the motion of the molecules in a gas is related both to its temperature and its pressure; Practical (PAG P1 Materials): compare the pressure in an inflated balloon that has been heated and frozen; build manometers to show pressure changes in heated and cooled volumes of gas.
