{"id":"W4408690152","doi":"10.1088/1361-6552/adbe1d","title":"Analysis of the normal force variation for a falling rod","year":2025,"lang":"en","type":"article","venue":"Physics Education","topic":"Experimental and Theoretical Physics Studies","field":"Physics and Astronomy","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Saskatchewan","funders":"","keywords":"Falling (accident); Variation (astronomy); Mathematics; Physics; Mechanics; Psychology; Astronomy","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.00004322459,0.00006355491,0.0001187248,0.00002825579,0.0001279106,0.00001258942,0.00009192668,0.000009046463,0.000009778316],"category_scores_gemma":[0.000004249948,0.00004917556,0.0001773328,0.000500243,0.00003535069,0.00005917894,0.00003552519,0.00003290553,8.352034e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00002189182,"about_ca_system_score_gemma":0.00006965167,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.000106484,"about_ca_topic_score_gemma":0.000001345062,"domain_scores_codex":[0.9996205,0.00001393449,0.0001230229,0.0001041932,0.00005891817,0.00007945814],"domain_scores_gemma":[0.9995855,0.000069831,0.00008474627,0.0001457369,0.0001042346,0.000009965212],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.000005713376,0.0002216675,0.008632621,0.00001068756,0.000459631,2.147241e-10,0.0007635427,0.0005581562,0.003320469,0.9813309,0.00004785752,0.004648801],"study_design_scores_gemma":[0.0001049105,0.000007232637,0.007368234,0.00001494522,0.0006168923,1.284268e-9,0.0004749073,0.00472589,0.02535501,0.9612242,0.00004976097,0.00005803038],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.3737063,0.00007798149,0.4380248,0.0005331393,0.0008040954,0.0006289478,0.00007086551,0.00001660157,0.1861373],"genre_scores_gemma":[0.9988743,3.609922e-7,0.0002421125,0.00005103502,0.0001600976,0.00009992639,0.00005246352,0.000003638876,0.0005160815],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.625168,"threshold_uncertainty_score":0.2005321,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.006102064223434873,"score_gpt":0.2804839492761719,"score_spread":0.274381885052737,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}