Waves (PY-11-02)

Why it matters: wave behaviour taught here — reflection, refraction, diffraction, interference — comes back directly in Year 12's Nature of Light (double-slit interference is a straight extension of the diffraction/interference content below).

Status

All three sub-topics drafted, ready for department review. Every page still has TODOs: 🖼️/🎥 diagram and video placeholders throughout, and one page has an ATSI content point deliberately left unwritten pending proper sourcing (see that page).

Sub-topics

Sub-topic	Status
Wave properties	Draft — ATSI content point flagged, needs proper sourcing before complete
Light and sound	Draft
Wave behaviours	Draft