# WME01/01 June 2017

> WME01/01 June 2017: 8 questions, 75 marks. Difficulty 0.46, deviation 0.15, algebraic 0.44, text density 0.52. Edexcel IAL Mathematics M1.

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Edexcel IAL · Mathematics · 2017 June

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=35f2ee4a-eb18-4590-991f-3781e71803ec)
- [All M1 papers](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/)

Core finding

**WME01/01 June 2017 is a past paper for Edexcel IAL Mechanics 1 (WME01), with 8 questions worth 75 marks.** Its mark-weighted Difficulty Measure is 0.46 on a 0.20–0.75 scale, with a Difficulty Deviation of 0.15 and a mark split of 12.0% Easy, 64.0% Medium and 24.0% Hard. Algebraic complexity averages 0.44; text density and modelling average 0.52. All five measures use 18 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 18 parts carrying 75 part marks. Difficulty tags cover 18 parts, algebraic tags 18 and text-density tags 18. Tags are internal metadata, not official exam-board ratings.

- **Difficulty Measure**: 0.46 — 0.20–0.75 · nearer Medium
- **Difficulty Deviation**: 0.15 — 0 = uniform; higher = more mixed
- **Difficulty Ratio**: 12.0 / 64.0 / 24.0 — % Easy / Medium / Hard
- **Algebraic Complexity Measure**: 0.44 — 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** | 0.46 | Σ(d_i × w_i) / Σw_i, with d = 0.20 / 0.45 / 0.75 |
| **Difficulty Deviation** | 0.15 | √(Σw_i(d_i − μ)^2 / Σw_i) |
| **Difficulty Ratio** | 12.0% Easy / 64.0% Medium / 24.0% Hard | marks in band / all tagged marks |
| **Algebraic Complexity Measure** | 0.44 | 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 | [5. Statics of a particle](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/statics-of-a-particle/) | 7 | 0.45 Medium | 0.45 Medium | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=35f2ee4a-eb18-4590-991f-3781e71803ec&question_id=9c62f744-276f-4664-a70e-23679f5307dc&source_detail=WME01%2F01+June+2017) |
| **Q2** FRQ | [6. Moments](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/moments/) | 9 | 0.45 Medium | 0.34 Medium | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=35f2ee4a-eb18-4590-991f-3781e71803ec&question_id=a2d77e18-918c-4131-83da-3c2ced247b11&source_detail=WME01%2F01+June+2017) |
| **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 | 0.34 Medium | 0.34 Medium | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=35f2ee4a-eb18-4590-991f-3781e71803ec&question_id=f94b728b-fc4a-4978-8987-19ec004ba391&source_detail=WME01%2F01+June+2017) |
| **Q4** 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/) | 8 | 0.33 Medium | 0.33 Medium | 0.33 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=35f2ee4a-eb18-4590-991f-3781e71803ec&question_id=05f4cf66-2a67-44a4-bcb0-c76a2dd00ecd&source_detail=WME01%2F01+June+2017) |
| **Q5** 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/) | 13 | 0.55 Medium | 0.35 Medium | 0.75 High | [Go to Practice Hub](https://www.examsci.com/practice?set_id=35f2ee4a-eb18-4590-991f-3781e71803ec&question_id=1eed2164-97da-41bc-a2b8-dd5e024c22be&source_detail=WME01%2F01+June+2017) |
| **Q6** FRQ | [2. Vectors in mechanics](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/vectors-in-mechanics/) | 9 | 0.45 Medium | 0.45 Medium | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=35f2ee4a-eb18-4590-991f-3781e71803ec&question_id=491eed4e-d3f4-4e0a-ac68-d140a84fad17&source_detail=WME01%2F01+June+2017) |
| **Q7** FRQ | [5. Statics of a particle](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-1-wme01/statics-of-a-particle/) | 8 | 0.45 Medium | 0.45 Medium | 0.20 Low | [Go to Practice Hub](https://www.examsci.com/practice?set_id=35f2ee4a-eb18-4590-991f-3781e71803ec&question_id=9afd9746-ef58-4594-a00e-f3f45d43e0d0&source_detail=WME01%2F01+June+2017) |
| **Q8** 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/) | 14 | 0.63 Hard | 0.66 High | 0.75 High | [Go to Practice Hub](https://www.examsci.com/practice?set_id=35f2ee4a-eb18-4590-991f-3781e71803ec&question_id=fe13019d-413a-4b49-b51a-40976df28606&source_detail=WME01%2F01+June+2017) |

## Topics in this paper

- [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/)
- [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/)
- [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-wme01/2017-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-january-wme01-01/) — January 2017 — 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
- [WME01/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-1-wme01/2018-january-wme01-01/) — January 2018 — 8 questions · 75 marks — Free
- [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

## 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 0.46 from 18 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 0.15, 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 12.0% Easy, 64.0% 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-wme01/2017-june-wme01-01/