{
  "@context": "https://schema.org",
  "@type": "Book",
  "id": "btbb-physics-9-en",
  "board": "BTBB",
  "boardName": "Balochistan",
  "boardFull": "Balochistan Textbook Board, Quetta",
  "class": "9",
  "classSort": 9,
  "subject": "Physics",
  "medium": "English",
  "pages": 235,
  "sizeMB": 92.1,
  "textTier": "scanned",
  "producer": "GPL Ghostscript 10.05.1",
  "file": "btbb-balochistan/class-9/physics-9-en.pdf",
  "year": null,
  "acquired": "2026-08-23",
  "sha256": "db31573ea3500c6a45d2669630155cec00ca37b390f9a3f4db116a498627f507",
  "title": "Physics - Grade 9",
  "sourceUrl": "https://drive.usercontent.google.com/download?id=19OU8Ov6_eG_QMDKUSXGFFpRsrWsciHyV&export=download",
  "scores": {
    "A1": 1,
    "A3": 3,
    "A7": 4
  },
  "evidence": [
    {
      "id": "e01",
      "lens": "religion",
      "axis": "A1",
      "score": 1,
      "kind": "observation",
      "page": null,
      "pageBasis": "PDF page index",
      "tier": "english-ocr",
      "text": "0.1/1k across 69,911 words — the largest book in the set."
    },
    {
      "id": "e02",
      "lens": "history",
      "axis": "A3",
      "score": 3,
      "kind": "quotation",
      "page": null,
      "pageBasis": "PDF page index",
      "tier": "english-ocr",
      "text": "21 evaluation verbs, all of the form \"Justify that distance, speed, time, mass, energy and temperature are scalar quantities\" — legitimate in a science, where the proposition is demonstrable. This is the control case: the justify-that template is only ideologically loaded when the proposition is contestable."
    },
    {
      "id": "e03",
      "lens": "gender",
      "axis": "A7",
      "score": 4,
      "kind": "absence",
      "page": null,
      "pageBasis": "PDF page index",
      "tier": "english-ocr",
      "text": "Ratio 0.59; no named woman scientist across 69,911 words. Balochistan's only Curie occurrence is Curie temperature, the physical constant, not the person."
    }
  ],
  "curriculum": "National Curriculum 2022-23",
  "edition": "NC 2022-23 pilot",
  "editionNote": "Front matter: 'developed ... based on National Curriculum of Pakistan 2022-23 and is being printed as Pilot Edition for a period of one academic year'",
  "note": null,
  "_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/btbb-physics-9-en/"
}