# WME02 Collisions Topic Questions > Edexcel IAL WME02: every Collisions topic question from 37 papers (2014–2026), grouped by syllabus point. 147 questions, 688 marks, with direct links into… - Canonical HTML: https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/ - Markdown mirror: https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/index.md --- Edexcel IAL · Mathematics · WME02 · A Level Every WME02 Collisions topic question from the 2014–current syllabus, drawn from 37 papers (2014–2026) and grouped by syllabus point. Each row opens a page listing the exact question numbers, marks and a direct link into the paper. These are questions by topic, not full papers, so you can revise one topic at a time. - WME02 - 3 subtopics - 147 topic questions - 37 papers - 688 tagged marks - [Back to Collisions](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/) - [All paper codes](https://www.examsci.com/topics/) Core finding **4.2 Direct impact of elastic particles. Newton's law of restitution.… is the most frequently assessed subtopic in Collisions, with 82 topic questions and 404 marks across 37 papers.** 4.1 Momentum as a vector. The impulse-momentum principle in… follows with 80 topic questions and 372 marks. The topic contains 3 subtopics, 147 topic questions and 688 marks in total. Rows count only the parts tagged to that subtopic, keep the same colour in both charts and repeat paper count, tagged marks and year range in the native table. ## Topic question count and mark distribution Subtopics are on the vertical axis and sorted from highest to lowest. Only the parts whose knowledge graph matches a subtopic are counted for it, and percentages are each row's share of the tagged total in that chart. A part tagged to several subtopics is counted in each bar, so the bars are not a partition of the topic total. ### Questions by subtopic question items - [4.2 Direct impact of elastic particles. Newton's law of restitution. Loss of mechanical energy due to impact.](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-2-direct-impact-of-elastic-particles-newton-s-law-of-restitution-loss-of-mechanical/) (37 papers) — 82 · 41.8% - [4.1 Momentum as a vector. The impulse-momentum principle in vector form. Conservation of linear momentum.](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-1-momentum-as-a-vector-the-impulse-momentum-principle-in-vector-form-conservation/) (37 papers) — 80 · 40.8% - [4.3 Successive impacts of up to three particles or two particles and a smooth plane surface.](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-3-successive-impacts-of-up-to-three-particles-or-two-particles-and-a-smooth-plane/) (32 papers) — 34 · 17.3% ### Marks by subtopic marks - [4.2 Direct impact of elastic particles. Newton's law of restitution. Loss of mechanical energy due to impact.](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-2-direct-impact-of-elastic-particles-newton-s-law-of-restitution-loss-of-mechanical/) (37 papers) — 404 · 43.4% - [4.1 Momentum as a vector. The impulse-momentum principle in vector form. Conservation of linear momentum.](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-1-momentum-as-a-vector-the-impulse-momentum-principle-in-vector-form-conservation/) (37 papers) — 372 · 40.0% - [4.3 Successive impacts of up to three particles or two particles and a smooth plane surface.](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-3-successive-impacts-of-up-to-three-particles-or-two-particles-and-a-smooth-plane/) (32 papers) — 155 · 16.6% ## Subtopic comparison matrix Curriculum order is by syllabus number, then alphabetically. Every row links to the matching past-paper question list. | Subtopic | Topic questions | Papers | Marks | Years | | | --- | --- | --- | --- | --- | --- | | **[4.1 Momentum as a vector. The impulse-momentum principle in vector form. Conservation of linear momentum.](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-1-momentum-as-a-vector-the-impulse-momentum-principle-in-vector-form-conservation/)** | 80 | 37 | 372 | 2014–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-1-momentum-as-a-vector-the-impulse-momentum-principle-in-vector-form-conservation/) | | **[4.2 Direct impact of elastic particles. Newton's law of restitution. Loss of mechanical energy due to impact.](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-2-direct-impact-of-elastic-particles-newton-s-law-of-restitution-loss-of-mechanical/)** | 82 | 37 | 404 | 2014–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-2-direct-impact-of-elastic-particles-newton-s-law-of-restitution-loss-of-mechanical/) | | **[4.3 Successive impacts of up to three particles or two particles and a smooth plane surface.](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-3-successive-impacts-of-up-to-three-particles-or-two-particles-and-a-smooth-plane/)** | 34 | 32 | 155 | 2014–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-3-successive-impacts-of-up-to-three-particles-or-two-particles-and-a-smooth-plane/) | ## Browse every topic question - [4.1 Momentum as a vector. The impulse-momentum principle in vector form. Conservation of linear momentum.](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-1-momentum-as-a-vector-the-impulse-momentum-principle-in-vector-form-conservation/) — 80 question items · 37 papers — 372 marks · 2014–2026 - [4.2 Direct impact of elastic particles. Newton's law of restitution. Loss of mechanical energy due to impact.](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-2-direct-impact-of-elastic-particles-newton-s-law-of-restitution-loss-of-mechanical/) — 82 question items · 37 papers — 404 marks · 2014–2026 - [4.3 Successive impacts of up to three particles or two particles and a smooth plane surface.](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/4-3-successive-impacts-of-up-to-three-particles-or-two-particles-and-a-smooth-plane/) — 34 question items · 32 papers — 155 marks · 2014–2026 ## Other topics in WME02 - [Centres of mass 86 question items](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/centres-of-mass/) - [Kinematics of a particle moving in a straight line or plane 221 question items](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/kinematics-of-a-particle-moving-in-a-straight-line-or-plane/) - [Statics of rigid bodies 100 question items](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/statics-of-rigid-bodies/) - [Work and energy 133 question items](https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/work-and-energy/) ## Topic question rules and edge cases **How many subtopics does Collisions contain?** This page lists 3 subtopics tagged to the current syllabus. They are ordered by syllabus number, then alphabetically, and each row opens a page of matching past-paper questions. **How are the subtopic question and mark totals calculated?** A multiple-choice question contributes one item and its marks to every subtopic it is tagged with. A structured question contributes one item per tagged part, and that part’s marks; untagged parts of the same question are not counted here. A part tagged to several subtopics therefore appears under each of them. **Why do some subtopics have no numbered prefix?** Practical-skills statements and some syllabus bullets are unnumbered. Numbered statements come first; unnumbered statements and ties are sorted alphabetically. **Is the LaTeX rendered without JavaScript?** Yes. Subtopics that contain formulas are converted to static KaTeX HTML during the build, and the KaTeX stylesheet is served from the same site. --- Full page with native tables, bar charts and Practice Hub links: https://www.examsci.com/topics/edexcel-ial/mathematics/mechanics-2-wme02/collisions/