# WME03/01 June 2017

> WME03/01 June 2017: 7 questions, 75 marks. Difficulty 0.44, deviation 0.15, algebraic 0.45, text density 0.50. Edexcel IAL Mathematics M3.

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Edexcel IAL · Mathematics · 2017 June

This Mechanics 3 (WME03) 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
- M3
- 7 questions
- 75 marks
- Free paper
- [Practise this paper](https://www.examsci.com/practice?set_id=caab6d35-1ad1-4d4a-a948-5e0de6c427c6)
- [All M3 papers](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-3-wme03/)

Core finding

**WME03/01 June 2017 is a past paper for Edexcel IAL Mechanics 3 (WME03), 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 0.15 and a mark split of 17.3% Easy, 62.7% Medium and 20.0% Hard. Algebraic complexity averages 0.45; text density and modelling average 0.50. All five measures use 13 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 13 parts carrying 75 part marks. Difficulty tags cover 13 parts, algebraic tags 13 and text-density tags 13. Tags are internal metadata, not official exam-board ratings.

- **Difficulty Measure**: 0.44 — 0.20–0.75 · nearer Medium
- **Difficulty Deviation**: 0.15 — 0 = uniform; higher = more mixed
- **Difficulty Ratio**: 17.3 / 62.7 / 20.0 — % Easy / Medium / Hard
- **Algebraic Complexity Measure**: 0.45 — 0.20–0.75 · nearer Medium
- **Text Density and Modelling Measure**: 0.50 — 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** | 0.15 | √(Σw_i(d_i − μ)^2 / Σw_i) |
| **Difficulty Ratio** | 17.3% Easy / 62.7% Medium / 20.0% Hard | marks in band / all tagged marks |
| **Algebraic Complexity Measure** | 0.45 | Σ(c_i × marks_i) / Σmarks_i, with c = 0.20 / 0.45 / 0.75 |
| **Text Density and Modelling Measure** | 0.50 | 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 rigid bodies](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-3-wme03/statics-of-rigid-bodies/) | 6 | 0.45 Medium | 0.45 Medium | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=caab6d35-1ad1-4d4a-a948-5e0de6c427c6&question_id=d2f5c227-bb75-4a26-8f3a-11b5cb88a130&source_detail=WME03%2F01+June+2017) |
| **Q2** FRQ | [5. Statics of rigid bodies](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-3-wme03/statics-of-rigid-bodies/) | 9 | 0.45 Medium | 0.45 Medium | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=caab6d35-1ad1-4d4a-a948-5e0de6c427c6&question_id=177f1302-b1e7-4ebe-8424-ab405c6243ef&source_detail=WME03%2F01+June+2017) |
| **Q3** FRQ | [3. Further dynamics](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-3-wme03/further-dynamics/) | 9 | 0.34 Medium | 0.20 Low | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=caab6d35-1ad1-4d4a-a948-5e0de6c427c6&question_id=fe4656c2-c210-47c5-b5c6-9fd10a78251f&source_detail=WME03%2F01+June+2017) |
| **Q4** FRQ | [2. Elastic strings and springs](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-3-wme03/elastic-strings-and-springs/) | 11 | 0.45 Medium | 0.45 Medium | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=caab6d35-1ad1-4d4a-a948-5e0de6c427c6&question_id=8600057c-e96c-4932-beb0-8596ac64cb81&source_detail=WME03%2F01+June+2017) |
| **Q5** FRQ | [1. Further kinematics](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-3-wme03/further-kinematics/) | 12 | 0.37 Medium | 0.37 Medium | 0.37 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=caab6d35-1ad1-4d4a-a948-5e0de6c427c6&question_id=316f6fc5-b868-43aa-9af1-3e77337bbce2&source_detail=WME03%2F01+June+2017) |
| **Q6** FRQ | [4. Motion in a circle](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-3-wme03/motion-in-a-circle/) | 13 | 0.35 Medium | 0.35 Medium | 0.45 Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=caab6d35-1ad1-4d4a-a948-5e0de6c427c6&question_id=9fec1e9a-2a63-4e5e-813f-598e179c4a2d&source_detail=WME03%2F01+June+2017) |
| **Q7** FRQ | [4. Motion in a circle](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-3-wme03/motion-in-a-circle/) | 15 | 0.75 Hard | 0.75 High | 0.75 High | [Go to Practice Hub](https://www.examsci.com/practice?set_id=caab6d35-1ad1-4d4a-a948-5e0de6c427c6&question_id=049587e0-97c0-44d3-8fbe-fcd9ab83ca88&source_detail=WME03%2F01+June+2017) |

## Topics in this paper

- [5. Statics of rigid bodies](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-3-wme03/statics-of-rigid-bodies/)
- [3. Further dynamics](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-3-wme03/further-dynamics/)
- [2. Elastic strings and springs](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-3-wme03/elastic-strings-and-springs/)
- [1. Further kinematics](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-3-wme03/further-kinematics/)
- [4. Motion in a circle](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-3-wme03/motion-in-a-circle/)

## Related papers

- [WME03/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-3-wme03/2017-january-wme03-01/) — January 2017 — 7 questions · 75 marks — Free
- [WME03/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-3-wme03/2018-june-wme03-01/) — June 2018 — 7 questions · 75 marks — Free
- [WME03/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-3-wme03/2018-january-wme03-01/) — January 2018 — 7 questions · 75 marks — Free
- [WME03/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-3-wme03/2016-june-wme03-01/) — June 2016 — 7 questions · 75 marks — Free
- [WME03/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-3-wme03/2016-january-wme03-01/) — January 2016 — 7 questions · 75 marks — Free
- [WME03/01](https://www.examsci.com/past-papers/edexcel-ial/mathematics/mechanics-3-wme03/2019-june-wme03-01/) — June 2019 — 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 0.44 from 13 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 17.3% Easy, 62.7% Medium and 20.0% 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-3-wme03/2017-june-wme03-01/