# Topic Questions: 83 understand how to apply conservation of linear momentum to problems in two dimensions — WPH14 Further Mechanics > 33 WPH14 Further Mechanics topic questions (110 marks) on 83 understand how to apply conservation of linear… — 18 papers, 2020–2026. Open the exact question… - Canonical HTML: https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-4-wph14/further-mechanics/83-understand-how-to-apply-conservation-of-linear-momentum-to-problems-in-two/ - Markdown mirror: https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-4-wph14/further-mechanics/83-understand-how-to-apply-conservation-of-linear-momentum-to-problems-in-two/index.md --- Edexcel IAL · Physics · WPH14 · Further Mechanics 33 WPH14 Further Mechanics topic questions are tagged to this syllabus point across 18 papers (2020–2026). Only the parts whose knowledge graph matches this syllabus statement are counted, and the table shows which parts of each question are involved. - 33 topic questions - 18 papers - 110 tagged marks - 19.0% of topic questions - 23.0% of topic marks - 2020–2026 - Syllabus 2018–current - [All WPH14 Further Mechanics topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-4-wph14/further-mechanics/) - [All paper codes](https://www.examsci.com/topics/) Core finding **This Further Mechanics syllabus point appears in 18 WPH14 papers across 2020–2026, contributing 33 topic questions and 110 marks.** The most recent appearance is WPH14/01 January 2026. That equals 19.0% of the 174 topic questions and 23.0% of the 478 marks tagged to Further Mechanics. Only parts tagged to this subtopic are counted, so a four-part question can contribute one item and one part's marks. The table lists every matching question, its tagged parts and marks, with a link back to the paper page. Sessions are newest first, so the statement can be traced back through the full paper history. ## Topic questions by session Newest sessions first. Parts and marks count only the parts tagged to this subtopic; “x of y parts” shows how much of the question is tagged elsewhere. Select the paper cell to open the matching question on the paper page, or use **Go to Practice Hub** to answer that exact question in the Interactive Practice Hub. | Paper | Question | Type | Parts | Marks | Difficulty | Practice | | --- | --- | --- | --- | --- | --- | --- | | [**WPH14/01** January 2026 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2026-january-wph14-01/#q-14) | **Q14** Elastic Collision between Two Spheres - Edexcel IAL Physics Unit 4 Jan 2026 Q14 | FRQ | 2 of 3 parts ((b)(i), (b)(ii)) | 6 of 8 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=07537f0c-01cf-4760-bd10-3eed77f7d0a6&question_id=6c4913e3-9421-4870-b820-0783f6f90078&source_detail=WPH14%2F01+January+2026) | | [**WPH14/02** January 2026 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2026-january-wph14-02/#q-12) | **Q12** DART Spacecraft Collision - Edexcel IAL Physics Jan 2026 Q12 | FRQ | 1 of 2 parts ((b)) | 2 of 5 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=ee1f4910-5f08-42aa-b80e-e6f9fada0b73&question_id=4e20b061-d9bc-49ff-b06a-6a92dd1058f4&source_detail=WPH14%2F02+January+2026) | | [**WPH14/01** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2025-october-wph14-01/#q-17) | **Q17** Snow Tube Collision Momentum Analysis - Edexcel IAL Physics Oct 2025 Q17 | FRQ | 1 of 2 parts ((a)) | 4 of 8 on the paper | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=c925843a-0326-4cc4-a60c-ebad9960c7c0&question_id=c1569cde-6f60-4dc5-84ff-f53fea302fec&source_detail=WPH14%2F01+October+2025) | | [**WPH14/02** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2025-october-wph14-02/#q-11) | **Q11** Neutron-Beryllium Collision Analysis - Edexcel IAL Physics Oct 2025 Q11 | FRQ | 2 of 3 parts ((a), (b)(i)) | 6 of 8 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=19a8118b-74b7-4fe4-9125-57c7428661ba&question_id=a87982b2-3079-4e2a-8cb0-34e2626032d7&source_detail=WPH14%2F02+October+2025) | | [**WPH14/02** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2025-october-wph14-02/#q-16) | **Q16** Swinging Object Collision Discussion - Edexcel IAL Physics Oct 2025 Q16 | FRQ | 1 part | 6 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=19a8118b-74b7-4fe4-9125-57c7428661ba&question_id=8557d735-a847-4102-99a2-06ea55dbf66b&source_detail=WPH14%2F02+October+2025) | | [**WPH14/01** June 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2025-june-wph14-01/#q-10) | **Q10** Circular Motion Velocity Vectors - Edexcel IAL Physics June 2025 Q10 | MCQ | MCQ · 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=3fa77855-5a47-4e9d-9d77-8e6feeafb348&question_id=8edd9b99-0479-4366-a8c3-125cd4b92b55&source_detail=WPH14%2F01+June+2025) | | [**WPH14/01** June 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2025-june-wph14-01/#q-12) | **Q12** Three Sphere Collision Analysis - Edexcel IAL Physics June 2025 Q12 | FRQ | 1 part | 3 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=3fa77855-5a47-4e9d-9d77-8e6feeafb348&question_id=7835c2bc-4ca4-49f4-b18f-62bc303ae6a3&source_detail=WPH14%2F01+June+2025) | | [**WPH14/01** January 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2025-january-wph14-01/#q-19) | **Q19** Bumper Car Collisions - Edexcel IAL Physics Jan 2025 Q19 | FRQ | 1 of 2 parts ((b)) | 6 of 9 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=3fa71427-5fa5-4200-87e4-7de25234272d&question_id=bbe6c326-3a3c-48f8-b22f-7767514cc77d&source_detail=WPH14%2F01+January+2025) | | [**WPH14/01** October 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2024-october-wph14-01/#q-18) | **Q18** Sigma Plus Particle Decay - Edexcel IAL Physics Oct 2024 Q18 | FRQ | 1 of 5 parts ((b)(iii)) | 6 of 17 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b5bd6e3e-5afd-4869-ad78-ba1875109b46&question_id=24185110-874d-4bb6-9335-52151d12298e&source_detail=WPH14%2F01+October+2024) | | [**WPH14/01** June 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2024-june-wph14-01/#q-2) | **Q2** Momentum Vector Diagram in Decay - Edexcel IAL Physics Unit 4 June 2024 Q2 | MCQ | MCQ · 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=cd6c5948-4054-4ae4-8638-e8fde551f1f4&question_id=165d7cf9-172f-44e9-b905-fea869819cdf&source_detail=WPH14%2F01+June+2024) | | [**WPH14/01** June 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2024-june-wph14-01/#q-15) | **Q15** Conservation of Momentum on Air Table - Edexcel IAL Physics Unit 4 June 2024 Q15 | FRQ | 2 of 3 parts ((a), (b)(i)) | 7 of 12 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=cd6c5948-4054-4ae4-8638-e8fde551f1f4&question_id=3dd90eeb-1cc6-4d06-99a6-07a0ac4391d2&source_detail=WPH14%2F01+June+2024) | | [**WPH14/01** January 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2024-january-wph14-01/#q-20) | **Q20** Conservation of Momentum in Two-Dimensional Particle Collisions - Edexcel IAL Physics Jan 2024 Q20 | FRQ | 2 of 3 parts ((a), (b)(i)) | 6 of 9 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=7f671b10-3bb0-47d7-9ab5-58b3498dd1dd&question_id=d8360534-69d5-4c77-9e5f-3a01be741dd3&source_detail=WPH14%2F01+January+2024) | | [**WPH14/01** October 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2023-october-wph14-01/#q-19) | **Q19** Curling Stone Collision - Edexcel IAL Physics Oct 2023 Q19 | FRQ | 1 of 2 parts ((a)) | 4 of 7 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=63cf6d9e-c5b2-42b1-b898-7773fe6081a7&question_id=586890f3-8114-49d6-9f4b-e07690851c17&source_detail=WPH14%2F01+October+2023) | | [**WPH14/01** June 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2023-june-wph14-01/#q-14) | **Q14** Alpha-Proton Collision Mechanics - Edexcel IAL Physics June 2023 Q14 | FRQ | 1 of 2 parts ((a)) | 6 of 10 on the paper | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=2055a28e-816f-4ab5-8253-c37cfd7dd7b9&question_id=7153c72a-a362-4680-8a28-08f1e1eb2d73&source_detail=WPH14%2F01+June+2023) | | [**WPH14/01** January 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2023-january-wph14-01/#q-14) | **Q14** Spreadsheet Model of Two-Dimensional Collisions - Edexcel IAL Physics Jan 2023 Q14 | FRQ | 2 of 3 parts ((a), (b)(ii)) | 7 of 10 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=495cc00c-1d7f-4297-981d-c1c626ca134d&question_id=af64dfa3-42d1-4946-8a7e-d303946a6dee&source_detail=WPH14%2F01+January+2023) | | [**WPH14/01** October 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2022-october-wph14-01/#q-16) | **Q16** Hockey Collision and Angular Velocity - Edexcel IAL Physics Oct 2022 Q16 | FRQ | 1 of 3 parts ((b)(i)) | 5 of 12 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=9be141d5-8b06-4cb6-8fa6-68d1cc9a6174&question_id=f3344cb2-fbc3-48dc-9fce-b7bc8599bedf&source_detail=WPH14%2F01+October+2022) | | [**WPH14/01** June 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2022-june-wph14-01/#q-12) | **Q12** Snooker Ball Collision Analysis - Edexcel IAL Physics June 2022 Q12 | FRQ | 2 of 3 parts ((b), (c)) | 7 of 8 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=6042feb3-c856-448e-8691-d6933b5190bc&question_id=a16778b8-45dd-425f-a223-8bc959f5a918&source_detail=WPH14%2F01+June+2022) | | [**WPH14/01** June 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2021-june-wph14-01/#q-15) | **Q15** Asteroid Deflection - June 2021 Q15 | FRQ | 3 of 5 parts ((a), (c), (d)) | 6 of 10 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b192ea77-92eb-44fc-91ce-d3a09157fcbf&question_id=55cf1baf-3ebb-459e-8800-37959d71e88e&source_detail=WPH14%2F01+June+2021) | | [**WPH14/01** January 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2021-january-wph14-01/#q-17) | **Q17** Impulse and Two-Dimensional Momentum Collision - Edexcel IAL Physics Jan 2021 Q17 | FRQ | 2 of 4 parts ((b)(i), (c)) | 6 of 12 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=ad4d3bdd-35e1-4b4e-8408-0afd068c0d8f&question_id=bc5fe36f-b3f5-4700-8a82-98e99e15651d&source_detail=WPH14%2F01+January+2021) | | [**WPH14/01** October 2020 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2020-october-wph14-01/#q-5) | **Q5** Force of Gas Molecule Collision - Edexcel IAL Physics June 2020 Q5 | MCQ | MCQ · 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=fd185779-00c6-4239-82cf-edc1f6fde6bd&question_id=79ddbdcb-d936-4e9d-ab5e-8335561172b1&source_detail=WPH14%2F01+October+2020) | | [**WPH14/01** October 2020 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2020-october-wph14-01/#q-17) | **Q17** Radon Decay in Cloud Chamber - Edexcel IAL Physics June 2020 Q17 | FRQ | 2 of 5 parts ((b)(ii), (b)(iii)) | 8 of 14 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=fd185779-00c6-4239-82cf-edc1f6fde6bd&question_id=cc7d506a-bea1-4118-9d91-340447866eef&source_detail=WPH14%2F01+October+2020) | | [**WPH14/01** January 2020 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2020-january-wph14-01/#q-9) | **Q9** Vector Addition of Momentum - Edexcel IAL Physics Jan 2020 Q9 | MCQ | MCQ · 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=5ef0bb69-523b-4ef4-b94b-964485f16e14&question_id=75200946-d389-44f2-88a9-28b2a8d86a15&source_detail=WPH14%2F01+January+2020) | | [**WPH14/01** January 2020 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2020-january-wph14-01/#q-13) | **Q13** Thermodynamics and Momentum of a Jumping Toy - Edexcel IAL Physics Jan 2020 Q13 | FRQ | 1 of 3 parts ((b)) | 5 of 9 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=5ef0bb69-523b-4ef4-b94b-964485f16e14&question_id=3875e3f3-0953-4386-b5cd-d931c743965c&source_detail=WPH14%2F01+January+2020) | ## Related topic questions in Further Mechanics - [81 understand how to use the equation impulse $=F\Delta t=\Delta p$ (Newton's second law of motion)](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-4-wph14/further-mechanics/81-understand-how-to-use-the-equation-impulse-f-delta-t-delta-p-newton-s-second-law/) — 30 question items · 18 papers — 69 marks · 2020–2026 - [84 CORE PRACTICAL 10: Use ICT to analyse collisions between small spheres, e.g. ball bearings on a table top](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-4-wph14/further-mechanics/84-core-practical-10-use-ict-to-analyse-collisions-between-small-spheres-e-g-ball/) — 1 question items · 1 papers — 2 marks · 2026 - [85 understand how to determine whether a collision is elastic or inelastic](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-4-wph14/further-mechanics/85-understand-how-to-determine-whether-a-collision-is-elastic-or-inelastic/) — 18 question items · 17 papers — 52 marks · 2020–2026 - [86 be able to derive and use the equation $E_{k}=\frac{p^{2}}{2m}$ for the kinetic energy of a non-relativistic particle](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-4-wph14/further-mechanics/86-be-able-to-derive-and-use-the-equation-e-k-frac-p-2-2m-for-the-kinetic-energy-of-a/) — 30 question items · 20 papers — 78 marks · 2020–2026 - [87 be able to express angular displacement in radians and in degrees, and convert between these units](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-4-wph14/further-mechanics/87-be-able-to-express-angular-displacement-in-radians-and-in-degrees-and-convert/) — 4 question items · 4 papers — 9 marks · 2020–2026 - [88 understand what is meant by angular velocity and be able to use the equations $T=\frac{2\pi}{\omega}$ and $v=\omega r$](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-4-wph14/further-mechanics/88-understand-what-is-meant-by-angular-velocity-and-be-able-to-use-the-equations-t/) — 25 question items · 18 papers — 64 marks · 2020–2026 ## Topic question rules and edge cases **How many topic questions cover this syllabus point?** 23 question stems cover this subtopic across 18 papers, but only 33 tagged parts and 110 marks belong to it. Other parts of the same questions are assessed under different statements and are excluded from this page. **Which papers include this subtopic?** The table lists every matching session from 2020–2026. Each row links to the question anchor on the paper page, where the full paper context and practice entry point are available. **Why can one question appear under several subtopics?** The parts of one question can assess different syllabus statements. Each part is counted under its own subtopics, so the same question stem can appear on several subtopic pages while each page lists only the parts and marks tagged to that statement. **Can I practise these questions with AI marking?** Yes. Open a paper from the table and use the Interactive Practice Hub entry point. The page itself is static HTML so search engines and retrieval agents can read the full question list without executing JavaScript. --- Full page with native tables, bar charts and Practice Hub links: https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-4-wph14/further-mechanics/83-understand-how-to-apply-conservation-of-linear-momentum-to-problems-in-two/