# WME01/01 October 2019 > WME01/01 October 2019: 8 questions, 75 marks. Difficulty 0.40, deviation 0.14, algebraic 0.34, text density 0.57. Edexcel IAL Mathematics M1. - Canonical HTML: https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2019-october-wme01-01/ - Markdown mirror: https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2019-october-wme01-01/index.md --- Edexcel IAL · Mathematics · 2019 October This Mechanics 1 (WME01) paper contains 8 questions worth 75 marks. The profile below reports five mark-weighted difficulty and complexity measures, and every question row repeats them. Full question text and mark scheme open in the Interactive Practice Hub. - Edexcel IAL - M1 - 8 questions - 75 marks - Free paper - [Practise this paper](https://www.examsci.com/practice?set_id=e83b84d2-a1cb-42a4-9cd5-1ad2b114f577) - [All M1 papers](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/) Core finding **WME01/01 October 2019 is a past paper for Edexcel IAL Mechanics 1 (WME01), with 8 questions worth 75 marks.** Its mark-weighted Difficulty Measure is 0.40 on a 0.20–0.75 scale, with a Difficulty Deviation of 0.14 and a mark split of 26.7% Easy, 62.7% Medium and 10.6% Hard. Algebraic complexity averages 0.34; text density and modelling average 0.57. All five measures use 19 part-level tags, not candidate results. Every question row below repeats them and opens the Interactive Practice Hub for that question. ## Difficulty & complexity profile All five measures are mark-weighted and calculated from 19 parts carrying 75 part marks. Difficulty tags cover 19 parts, algebraic tags 19 and text-density tags 19. Tags are internal metadata, not official exam-board ratings. - **Difficulty Measure**: 0.40 — 0.20–0.75 · nearer Medium - **Difficulty Deviation**: 0.14 — 0 = uniform; higher = more mixed - **Difficulty Ratio**: 26.7 / 62.7 / 10.6 — % Easy / Medium / Hard - **Algebraic Complexity Measure**: 0.34 — 0.20–0.75 · nearer Medium - **Text Density and Modelling Measure**: 0.57 — 0.20–0.75 · nearer Medium Scale: Easy 0.20 · Medium 0.45 · Hard 0.75, and Low 0.20 · Medium 0.45 · High 0.75 for the two complexity measures. [How each band is defined and how the values are calculated →](https://www.examsci.com/guides/difficulty-and-complexity-measures/) ### Definitions and calculation | Measure | Paper value | Formula | | --- | --- | --- | | **Difficulty Measure** | 0.40 | Σ(d_i × w_i) / Σw_i, with d = 0.20 / 0.45 / 0.75 | | **Difficulty Deviation** | 0.14 | √(Σw_i(d_i − μ)^2 / Σw_i) | | **Difficulty Ratio** | 26.7% Easy / 62.7% Medium / 10.6% Hard | marks in band / all tagged marks | | **Algebraic Complexity Measure** | 0.34 | Σ(c_i × marks_i) / Σmarks_i, with c = 0.20 / 0.45 / 0.75 | | **Text Density and Modelling Measure** | 0.57 | Σ(t_i × marks_i) / Σmarks_i, with t = 0.20 / 0.45 / 0.75 | w_i equals the part marks, except for a Hard part worth 4 or more marks, where w_i = marks^0.75 to offset the accessible starter steps inside long structured questions. ## Question list Each measure is recalculated from the parts of that question and uses the same weights as the paper profile. | Question | Topic | Marks | Difficulty Measure | Algebraic Complexity Measure | Text Density and Modelling Measure | Practice | | --- | --- | --- | --- | --- | --- | --- | | **Q1** FRQ | [4. Dynamics of a particle moving in a straight line or plane](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/dynamics-of-a-particle-moving-in-a-straight-line-or-plane/) | 6 | 0.20 Easy | 0.20 Low | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e83b84d2-a1cb-42a4-9cd5-1ad2b114f577&question_id=3dc638c6-1737-4ac9-81e3-508b39925d3e&source_detail=WME01%2F01+October+2019) | | **Q2** FRQ | [3. Kinematics of a particle moving in a straight line](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/kinematics-of-a-particle-moving-in-a-straight-line/) | 9 | 0.45 Medium | 0.20 Low | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e83b84d2-a1cb-42a4-9cd5-1ad2b114f577&question_id=4bc85828-48ad-45b9-8328-29ebda8094cb&source_detail=WME01%2F01+October+2019) | | **Q3** FRQ | [4. Dynamics of a particle moving in a straight line or plane](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/dynamics-of-a-particle-moving-in-a-straight-line-or-plane/) | 7 | 0.45 Medium | 0.45 Medium | 0.75 High | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e83b84d2-a1cb-42a4-9cd5-1ad2b114f577&question_id=d30f1dce-81c8-4a42-8026-13fb4ea73bb5&source_detail=WME01%2F01+October+2019) | | **Q4** FRQ | [5. Statics of a particle](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/statics-of-a-particle/) | 12 | 0.45 Medium | 0.41 Medium | 0.75 High | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e83b84d2-a1cb-42a4-9cd5-1ad2b114f577&question_id=3208d68a-a732-482f-8086-8a8d3a1b5649&source_detail=WME01%2F01+October+2019) | | **Q5** FRQ | [6. Moments](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/moments/) | 8 | 0.45 Medium | 0.36 Medium | 0.75 High | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e83b84d2-a1cb-42a4-9cd5-1ad2b114f577&question_id=3a800e9f-7619-4f00-9fc9-2f2d80485cd1&source_detail=WME01%2F01+October+2019) | | **Q6** FRQ | [3. Kinematics of a particle moving in a straight line](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/kinematics-of-a-particle-moving-in-a-straight-line/) | 12 | 0.28 Easy | 0.28 Low | 0.33 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e83b84d2-a1cb-42a4-9cd5-1ad2b114f577&question_id=166778fd-52df-4379-a0f4-a0ea0e6e9b8d&source_detail=WME01%2F01+October+2019) | | **Q7** FRQ | [2. Vectors in mechanics](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/vectors-in-mechanics/) | 7 | 0.45 Medium | 0.45 Medium | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e83b84d2-a1cb-42a4-9cd5-1ad2b114f577&question_id=277f55a8-c957-4eb5-bd67-c798c51050ea&source_detail=WME01%2F01+October+2019) | | **Q8** FRQ | [2. Vectors in mechanics](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/vectors-in-mechanics/) | 14 | 0.44 Medium | 0.34 Medium | 0.62 High | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e83b84d2-a1cb-42a4-9cd5-1ad2b114f577&question_id=622dd6c7-b115-4624-bfc7-487a6c10dc49&source_detail=WME01%2F01+October+2019) | ## Topics in this paper - [4. Dynamics of a particle moving in a straight line or plane](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/dynamics-of-a-particle-moving-in-a-straight-line-or-plane/) - [3. Kinematics of a particle moving in a straight line](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/kinematics-of-a-particle-moving-in-a-straight-line/) - [5. Statics of a particle](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/statics-of-a-particle/) - [6. Moments](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/moments/) - [1. Mathematical models in mechanics](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/mathematical-models-in-mechanics/) - [2. Vectors in mechanics](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/vectors-in-mechanics/) ## Related papers - [WME01/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2019-june-wme01-01/) — June 2019 — 8 questions · 75 marks — Free - [WME01/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2019-january-wme01-01/) — January 2019 — 7 questions · 75 marks — Free - [WME01/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2020-october-wme01-01/) — October 2020 — 8 questions · 75 marks — Free - [WME01/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2020-january-wme01-01/) — January 2020 — 7 questions · 75 marks — Free - [WME01/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2018-october-wme01-01/) — October 2018 — 8 questions · 75 marks — Free - [WME01/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2018-june-wme01-01/) — June 2018 — 7 questions · 75 marks — Free ## Paper FAQ **How are the difficulty and complexity measures calculated?** Each part is weighted by its official marks. Difficulty uses Easy 0.20, Medium 0.45 and Hard 0.75; algebraic complexity and text density and modelling use Low 0.20, Medium 0.45 and High 0.75. A Hard part worth 4 or more marks is down-weighted to marks^0.75, so the accessible starter steps inside a long structured question do not inflate the difficulty result. This paper's Difficulty Measure is 0.40 from 19 parts. **What does the Difficulty Deviation show?** It is the mark-weighted standard deviation of the part difficulty values around the paper mean. A value of 0 would mean every tagged part has the same difficulty; this paper's deviation is 0.14, so its parts are more mixed than a single-level paper. **Is the Difficulty Ratio based on question counts or marks?** It is based on official marks, not question counts. This paper's shares are 26.7% Easy, 62.7% Medium and 10.7% Hard; the three shares sum to 100% before rounding. **Are these official difficulty ratings?** No. They are derived from the platform's part-level difficulty and static-question-profile tags. They are not exam-board grade boundaries and are not calculated from candidate outcomes. Use them to compare the demand profile of papers, not to predict a grade. **Why does each question row show its own measures?** Each row recalculates the same mark-weighted formula from that question's parts. A single-part MCQ therefore shows the tag value directly, while a multi-part structured question blends the tags of its parts using the same Hard-part decay as the paper profile. --- Full page with native tables, bar charts and Practice Hub links: https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2019-october-wme01-01/