Lesson presentation. IB physics first exams 2025, syllabus section B1 in pdf, ppt & odp format. 92 slides. Connection between microscopic velocities & kelvin temperature, internal energy, specific heats, thermal conduction, convection & radiation, black-body emission, Stefan Boltzmann law, Wien's displacement law, inverse square law. Emphasis on graphics with clear, bespoke figures. Step-by-step worked examples. Includes a short quiz at the end modeled on past paper multiple choice questions. Un