Physics opening fortnight… | Year 11 Physics · T1 W1–2 · Run Through

This is a desk simulation plus artifact checks, not a classroom trial, learner-outcome study, accessibility certification, live experiment or funder endorsement. Each role below tried to use the pack, raised a concrete failure mode and checked the resulting boundary.

Role and attempt	Fault sought	Correction or limit now visible
Teacher starting Day 1 with five minutes to prepare	Could equal temperature be made to mean equal whole-sample energy or an exact fivefold joule value?	The source fixes same material and phase but different mass, the particle aid separates average particle state from whole sample, and the key refuses an exact internal-energy figure without more assumptions.
Teacher using Days 2–5	Could the three pathways be taught as mutually exclusive or as proof of real safety?	The three-path aid locates each path and Day 5 lets them coexist. The poster and key reject food safety without temperature/time evidence. No live test is suggested.
Learner switching route mid-response	Does B or C still require the same physics evidence as A?	The learner page states the three-part target for every route. Each card asks for a model/path, units or evidence, and a bounded correction; access support is separately recorded. Equivalent outcomes have not been measured.
Learner without a printer or device	Is Day 8 blocked by an interactive, graphic or colour?	The full text/tactile aids preserve the equations, units and limits. The paper heat-budget route gives both cases and a one-factor prediction test.
Parent or supporter at home	Would the optional work require a purchase or a real heat source?	All twenty extras use invented written contexts. There is no personal-data, hot-object or real-material task. The supporter can ask “which factor?” while the learner directs any tactile cards.
School science teacher considering Day 7	Does a screen digit get treated as the device's uncertainty or calibration proof?	The ±0.1 °C per-reading bound is explicitly stipulated in a fictional desk note. The worked guide uses a conservative ±0.2 °C difference bound and about 2.2% of 9.0 °C, while leaving calibration unknown.
Accessibility reviewer	Do SVG/PDF labels, font and offline focus make a universal-access guarantee?	Five A4 PDFs were rendered/visually inspected for clipping and searchable text; SVG title/desc and full text/tactile routes exist. The offline tool has labels, visible focus, live result and a paper equivalent. User testing and local Braille production remain.
Funder reading the scope	Could 250 minutes and two public checks be advertised as the 15-hour topic or proven achievement?	The crosswalk marks selected printed p. 20–21 opportunities and defers practical inquiry, phase change, equilibrium, first law, efficiency and other Unit 1 topics. Checks/keys are public and formative. No impact claim is made.

Local artifact receipts

Authority: On 29 September 2026, the official QCAA Physics subject page and Physics 2025 v1.3 PDF Unit 1/Topic 1 pp. 19–21, QCE General-unit hours, QCAA rights notice and BIPM Celsius–Kelvin relationship were checked. The official PDF is linked, not redistributed; future freshness requires rechecking.
Calculation: The verifier independently recomputes Days 6–10 and fresh Check B with exact decimal arithmetic, checks the stipulated givens and public answer key, and protects mechanism/case boundaries. This checks the authored artifact, not a student result.
Print and browser: A4 geometry, searchable PDF text, font subset, deterministic print regeneration, visual render, offline worked cases, invalid bounds, mobile layout, local-only network and no storage are checked before handoff. The SHA receipt and local link/fragment walk must pass after the final edit.