{
  "annotation_id": "c573f161-9081-4401-86ae-e0a369b91ec0",
  "date_created": "2026-03-02T18:01:14.418000Z",
  "date_modified": "2026-03-02T18:01:14.418000Z",
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  "record": {
    "abstract": "A set of examples is provided that illustrate the use of work as applied to\nsimple machines. The ramp, pulley, lever and hydraulic press are common\nexperiences in the life of a student and their theoretical analysis therefore\nmakes the abstract concept of work more real. The mechanical advantage of each\nof these systems is also discussed so that students can evaluate their\nusefulness as machines.",
    "arxiv_id": "physics/0612109",
    "authors": [
      "John W. Norbury"
    ],
    "categories": [
      "physics.ed-ph"
    ],
    "doi": "10.1088/0031-9120/41/6/010",
    "journal_ref": "Physics Education, vol. 41, pg. 546 - 550 (2006)",
    "title": "Working with simple machines",
    "url": "https://arxiv.org/abs/physics/0612109"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "70ce9f51-8513-4eaf-a65c-4033f8a253d6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}