# WME01/01 June 2016

> WME01/01 June 2016: 7 questions, 75 marks. Difficulty 0.44, deviation 0.17, algebraic 0.35, text density 0.52. Edexcel IAL Mathematics M1.

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Edexcel IAL · Mathematics · 2016 June

This Mechanics 1 (WME01) paper contains 7 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
- 7 questions
- 75 marks
- Free paper
- [Practise this paper](https://www.examsci.com/practice?set_id=45adfa9d-f092-4f5c-87fb-05890d161d75)
- [All M1 papers](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/)

Core finding

**WME01/01 June 2016 is a past paper for Edexcel IAL Mechanics 1 (WME01), with 7 questions worth 75 marks.** Its mark-weighted Difficulty Measure is 0.44 on a 0.20–0.75 scale, with a Difficulty Deviation of 0.17 and a mark split of 20.0% Easy, 56.0% Medium and 24.0% Hard. Algebraic complexity averages 0.35; text density and modelling average 0.52. 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**: 0.44 — 0.20–0.75 · nearer Medium
- **Difficulty Deviation**: 0.17 — 0 = uniform; higher = more mixed
- **Difficulty Ratio**: 20.0 / 56.0 / 24.0 — % Easy / Medium / Hard
- **Algebraic Complexity Measure**: 0.35 — 0.20–0.75 · nearer Medium
- **Text Density and Modelling Measure**: 0.52 — 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** | 0.44 | Σ(d_i × w_i) / Σw_i, with d = 0.20 / 0.45 / 0.75 |
| **Difficulty Deviation** | 0.17 | √(Σw_i(d_i − μ)^2 / Σw_i) |
| **Difficulty Ratio** | 20.0% Easy / 56.0% Medium / 24.0% Hard | marks in band / all tagged marks |
| **Algebraic Complexity Measure** | 0.35 | Σ(c_i × marks_i) / Σmarks_i, with c = 0.20 / 0.45 / 0.75 |
| **Text Density and Modelling Measure** | 0.52 | 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 | [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/) | 7 | 0.34 Medium | 0.34 Medium | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=45adfa9d-f092-4f5c-87fb-05890d161d75&question_id=739b0fb0-0bb8-4e0a-8306-be156132dd4e&source_detail=WME01%2F01+June+2016) |
| **Q2** 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 | 0.37 Medium | 0.37 Medium | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=45adfa9d-f092-4f5c-87fb-05890d161d75&question_id=bc113287-5854-49de-bdf5-259e24d427c7&source_detail=WME01%2F01+June+2016) |
| **Q3** 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/) | 10 | 0.40 Medium | 0.40 Medium | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=45adfa9d-f092-4f5c-87fb-05890d161d75&question_id=16cac19d-a2cb-48a4-a99c-415d491abe14&source_detail=WME01%2F01+June+2016) |
| **Q4** FRQ | [5. Statics of a particle](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/statics-of-a-particle/) | 10 | 0.43 Medium | 0.28 Low | 0.75 High | [Go to Practice Hub](https://www.examsci.com/practice?set_id=45adfa9d-f092-4f5c-87fb-05890d161d75&question_id=a6a8137a-e9e9-406b-a6f2-d70d324b82fd&source_detail=WME01%2F01+June+2016) |
| **Q5** FRQ | [2. Vectors in mechanics](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/vectors-in-mechanics/) | 10 | 0.45 Medium | 0.33 Medium | 0.20 Low | [Go to Practice Hub](https://www.examsci.com/practice?set_id=45adfa9d-f092-4f5c-87fb-05890d161d75&question_id=de8877fc-cda1-46ca-a9ad-05c5f0d91a20&source_detail=WME01%2F01+June+2016) |
| **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/) | 17 | 0.44 Medium | 0.32 Low | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=45adfa9d-f092-4f5c-87fb-05890d161d75&question_id=0e8bfbb0-ab74-4701-a7b0-bfd723bd0ba5&source_detail=WME01%2F01+June+2016) |
| **Q7** 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/) | 15 | 0.59 Medium | 0.43 Medium | 0.75 High | [Go to Practice Hub](https://www.examsci.com/practice?set_id=45adfa9d-f092-4f5c-87fb-05890d161d75&question_id=afb9ffeb-62da-47de-8895-a05282ba6a11&source_detail=WME01%2F01+June+2016) |

## Topics in this paper

- [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/)
- [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/)
- [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-wme01/2016-october-wme01-01/) — October 2016 — 8 questions · 75 marks — Free
- [WME01/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2016-january-wme01-01/) — January 2016 — 7 questions · 75 marks — Free
- [WME01/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2017-october-wme01-01/) — October 2017 — 7 questions · 75 marks — Free
- [WME01/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2017-june-wme01-01/) — June 2017 — 8 questions · 75 marks — Free
- [WME01/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2017-january-wme01-01/) — January 2017 — 7 questions · 75 marks — Free
- [WME01/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2015-june-wme01-01/) — June 2015 — 8 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 0.44 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 0.17, 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 20.0% Easy, 56.0% Medium and 24.0% 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.

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Full page with native tables, bar charts and Practice Hub links: https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2016-june-wme01-01/