This GCSE Physics PowerPoint presentation provides a complete and accessible lesson on gas pressure and temperature, tailored for AQA GCSE Combined Science Physics. It explores the relationship between the temperature of a gas and the pressure it exerts, using the particle model of matter to explain how particle motion leads to changes in pressure. The lesson also includes a demonstration, real-life examples, interactive tasks, and exam-style questions to support student learning.
Gas pressure is the result of gas particles colliding with the walls of their container. As temperature increases, gas particles gain more kinetic energy, move faster, and collide more often and with greater force—leading to an increase in pressure, provided the volume remains constant. This lesson builds on students’ prior knowledge of particles and energy, linking it to gas behaviour and measurable quantities like force, area, and pressure.
The resource includes a starter activity to activate prior knowledge, followed by explanations, particle diagrams, and video links (e.g. Brownian motion demonstrations) to visually explain how temperature affects particle motion. There are multiple-choice questions, fill-in-the-gap tasks, and structured written questions that help students consolidate their understanding of particle theory and pressure changes.
A hands-on practical demonstration using a Bourdon gauge is included, along with safety guidance and step-by-step instructions. Students are guided to collect data on gas pressure at different temperatures, then plot and interpret a line graph of pressure vs temperature. Key vocabulary such as kinetic energy, pressure, force, volume, and temperature is embedded throughout.
Last updated: March 2025.
This editable PowerPoint (.pptx) is ideal for teachers, tutors, and students seeking a clear, curriculum-aligned resource on gas pressure and temperature. Download now to boost student engagement and confidence in this topic.
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