0–3 puzzle: Show two same-size drawn bowls and read exactly the same. Ask what the picture actually measures. 3–7 source: Reveal the different masses and same material/phase; identify system boundary as each whole sample. 7–12 teach: Use the particle-and-system mat: temperature relates to average particle kinetic-energy state in this model; the larger same-material sample contains more matter, so equal temperature does not establish equal total internal energy. Exact energy needs more information. 12–20 route: A/B/C labels average versus whole-sample statements and edits the label. 20–23 audit: Ask whether “five times the mass” by itself licenses an exact joule figure (no reference state or energy data). 23–25 exit: One equal-temperature inference, one invalid total-energy inference.
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Day 1 · Equal temperature is not equal total energyYear 11 Physics · T1 W1–2 · Day 1 lesson
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Year 11 / Physics / Term 1 / Weeks 01 02
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