0–3 puzzle: Read the theatre budget line; students predict whether doubling mass changes model Q. 3–7 source: Mark invented c, same phase, same ΔT and no modelled heat loss. 7–12 teach: On the heat-budget mat, calculate Q=mcΔT: 0.50 kg×2,000 J kg⁻¹ K⁻¹×4 K=4,000 J; double mass gives 8,000 J. Cancel units explicitly. 12–20 route: A/B/C compares the two cases, then revises the line with model assumptions. The offline heat-budget lab is optional after a prediction and has a paper route. 20–23 audit: Check that changing mass alone does not become a real heater rating. 23–25 exit: State the two energies and one omitted real-world loss.
Development draft · local review needed
Day 8 · Mass is in the heat modelYear 11 Physics · T1 W1–2 · Day 8 lesson
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Year 11 / Physics / Term 1 / Weeks 01 02
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