{
  "@context": "https://schema.org",
  "@type": "Book",
  "id": "stbb-physics-9-en",
  "board": "STBB",
  "boardName": "Sindh",
  "boardFull": "Sindh Textbook Board, Jamshoro",
  "class": "9",
  "classSort": 9,
  "subject": "Physics",
  "medium": "English",
  "pages": 223,
  "sizeMB": 139.3,
  "textTier": "scanned",
  "producer": "Adobe Acrobat Pro 11.0.0",
  "file": "stbb-sindh/class-9/physics-9-en.pdf",
  "year": null,
  "acquired": "2026-08-21",
  "sha256": "1ee4220a26f2f066112bef979727c0e6c48dd4ca3293590473019b6d7deab9a6",
  "title": "Physics IX (2026)",
  "sourceUrl": "https://portal.stbb.edu.pk/ebooks/pdf_proxy.php?id=174&download=1",
  "scores": {
    "A1": 1,
    "A7": 5
  },
  "evidence": [
    {
      "id": "e01",
      "lens": "religion",
      "axis": "A1",
      "score": 1,
      "kind": "absence",
      "page": null,
      "pageBasis": "PDF page index",
      "tier": "english-ocr",
      "text": "Not one religious token in 223 pp.; no bismillah. The most secular book in the corpus."
    }
  ],
  "curriculum": "National Curriculum 2006",
  "edition": "portal-listed",
  "editionNote": "STBB portal edition year",
  "note": "Nine units, with mechanics units 1–4 identical to Punjab's and KP's — that core is genuinely national — and one unit no other board gives standalone space: Unit 8, Energy Sources and Transfer of Energy, framing energy through renewable and non-renewable resources and efficiency. A1 is 1 on the strongest evidence in the corpus: not one religious token in 223 pages, and no bismillah. This is the most secular book examined, and it is the direct control against KP's Physics 9, which opens Chapter 1 with a \"QURAAN AND PHYSICS\" page before any physics content. A7 5 is again absence rather than prescription — one female-marked token in 44,833 words. Climate change is mentioned zero times. The practical warning is a defect in the book itself: its own contents page prints only eight rows and omits Unit 8 entirely, which exists and opens at PAGE 180. Anyone reconstructing the syllabus from the printed TOC will drop a unit.",
  "_license": "CC BY 4.0 — attribute to the Textbook Evidence Project.",
  "_note": "Scores are measured properties of text, not verdicts. Read /method/ before using them.",
  "_canonical": "/books/stbb-physics-9-en/"
}