# Topic Questions: 2 apply the principle of conservation of momentum to solve simple problems, including elastic and inelastic interactions between objects in both one and two dimensions (knowledge of the concept of coefficient of restitution is not required) — 9702 P1 Linear momentum and its conservation > 11 9702 P1 Linear momentum and its conservation topic questions (11 marks) on 2 apply the principle of conservation of momentum… — 11 papers, 2025–2026.… - Canonical HTML: https://www.examsci.com/topics/cie-ial/physics/9702-paper-1/linear-momentum-and-its-conservation/2-apply-the-principle-of-conservation-of-momentum-to-solve-simple-problems-including/ - Markdown mirror: https://www.examsci.com/topics/cie-ial/physics/9702-paper-1/linear-momentum-and-its-conservation/2-apply-the-principle-of-conservation-of-momentum-to-solve-simple-problems-including/index.md --- CIE IAL · Physics · 9702 P1 · Linear momentum and its conservation 11 9702 P1 Linear momentum and its conservation topic questions are tagged to this syllabus point across 11 papers (2025–2026). Only the parts whose knowledge graph matches this syllabus statement are counted, and the table shows which parts of each question are involved. - 11 topic questions - 11 papers - 11 tagged marks - 55.0% of topic questions - 55.0% of topic marks - 2025–2026 - Syllabus 2025–2027 - [All 9702 P1 Linear momentum and its conservation topic questions](https://www.examsci.com/topics/cie-ial/physics/9702-paper-1/linear-momentum-and-its-conservation/) - [All paper codes](https://www.examsci.com/topics/) Core finding **This Linear momentum and its conservation syllabus point appears in 11 9702 P1 papers across 2025–2026, contributing 11 topic questions and 11 marks.** The most recent appearance is 9702/11 May/June 2026. That equals 55.0% of the 20 topic questions and 55.0% of the 20 marks tagged to Linear momentum and its conservation. 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 | | --- | --- | --- | --- | --- | --- | --- | | [**9702/11** May/June 2026 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-1/2026-may-june-9702-11/#q-12) | **Q12** 2D Collision of Rolling Balls - CIE Physics 2026 Jun Paper 11 Q12 | FRQ | 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=cc3bc1fb-5d32-4ebd-a007-75eca5050e6a&question_id=bdf64a63-715b-42bd-abd6-ea0316cb3900&source_detail=9702%2F11+May%2FJune+2026) | | [**9702/13** May/June 2026 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-1/2026-may-june-9702-13/#q-10) | **Q10** Kinetic Energy After Explosion in Space - CIE Physics 2026 Jun Paper 13 Q10 | FRQ | 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b1c6e9e0-2b9a-46bc-95ba-9424df870b39&question_id=7a2d8ec9-d292-439b-9d38-5b7ada20812b&source_detail=9702%2F13+May%2FJune+2026) | | [**9702/14** May/June 2026 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-1/2026-may-june-9702-14/#q-11) | **Q11** 2D Inelastic Collision Momentum - CIE AS Physics 2026 Jun Paper 14 Q11 | FRQ | 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=de063b94-8315-433b-9015-36c4298fd0da&question_id=18fe1152-9f63-473e-a1cc-21384e27e29c&source_detail=9702%2F14+May%2FJune+2026) | | [**9702/11** October/November 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-1/2025-october-november-9702-11/#q-10) | **Q10** Head-on Elastic Collision - CIE Physics 2025 Nov Paper 11 Q10 | FRQ | 1 part | 1 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=924eca36-7f76-4bd9-bfca-c73eef3ca841&question_id=226aca3d-3320-40e7-83f2-ceac586c2831&source_detail=9702%2F11+October%2FNovember+2025) | | [**9702/12** October/November 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-1/2025-october-november-9702-12/#q-10) | **Q10** Vector Addition of Momentum - CIE AS Physics 2025 Nov Paper 12 Q10 | FRQ | 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=a9354265-4ad0-4b45-86d5-ea844b7fc508&question_id=96434307-70fb-48b3-9272-dd8ec32aefc6&source_detail=9702%2F12+October%2FNovember+2025) | | [**9702/13** October/November 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-1/2025-october-november-9702-13/#q-10) | **Q10** Head-on Elastic Collision Velocity - CIE AS Physics 2025 Winter Paper 13 Q10 | FRQ | 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e008d23b-4651-402b-b889-f33aa055a6e8&question_id=aa7efdd4-f53b-4b09-8257-d033f34c4669&source_detail=9702%2F13+October%2FNovember+2025) | | [**9702/14** October/November 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-1/2025-october-november-9702-14/#q-10) | **Q10** Kinetic Energy Loss in Inelastic Collision - CIE Physics 2025 Nov Paper 14 Q10 | FRQ | 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=8d338983-d025-4544-9fad-eeb58b6137e4&question_id=31bbf56c-355b-49db-8b1c-f6335b593d90&source_detail=9702%2F14+October%2FNovember+2025) | | [**9702/11** May/June 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-1/2025-may-june-9702-11/#q-11) | **Q11** Average Force on Colliding Block - CIE AS Physics 2025 Jun Paper 11 Q11 | FRQ | 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=325aa048-bfe6-485f-9b5e-526096d74ef8&question_id=2295c5b9-bd9a-46e9-ad8a-c58ffe426cfa&source_detail=9702%2F11+May%2FJune+2025) | | [**9702/12** May/June 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-1/2025-may-june-9702-12/#q-13) | **Q13** Momentum and Kinetic Energy of Cart and Rock - CIE Physics 2025 Jun Paper 12 Q13 | FRQ | 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b4660d66-a150-4696-975b-81801f6095c2&question_id=0867f902-b922-4680-9904-7014922cdb20&source_detail=9702%2F12+May%2FJune+2025) | | [**9702/13** May/June 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-1/2025-may-june-9702-13/#q-11) | **Q11** Conservation of Momentum in 2D Nuclear Collision - CIE Physics 2025 Jun Paper 13 Q11 | FRQ | 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=8b189094-c406-4e28-b27f-08421d7e7345&question_id=6ef4bda8-4394-4690-b1d1-04403d6a4af0&source_detail=9702%2F13+May%2FJune+2025) | | [**9702/14** May/June 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-1/2025-may-june-9702-14/#q-9) | **Q9** Elastic Collision Between Two Gliders - CIE Physics 2025 Jun Paper 14 Q9 | FRQ | 1 part | 1 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=2106ff7e-11fe-46fe-a4ec-d7c6bb2b24c8&question_id=e4b1dfb4-ac68-444d-915f-2575698a470d&source_detail=9702%2F14+May%2FJune+2025) | ## Related topic questions in Linear momentum and its conservation - [1 state the principle of conservation of momentum](https://www.examsci.com/topics/cie-ial/physics/9702-paper-1/linear-momentum-and-its-conservation/1-state-the-principle-of-conservation-of-momentum/) — 4 question items · 4 papers — 4 marks · 2025–2026 - [3 recall that, for an elastic collision, total kinetic energy is conserved and the relative speed of approach is equal to the relative speed of separation](https://www.examsci.com/topics/cie-ial/physics/9702-paper-1/linear-momentum-and-its-conservation/3-recall-that-for-an-elastic-collision-total-kinetic-energy-is-conserved-and-the/) — 8 question items · 8 papers — 8 marks · 2025–2026 - [4 understand that, while momentum of a system is always conserved in interactions between objects, some change in kinetic energy may take place](https://www.examsci.com/topics/cie-ial/physics/9702-paper-1/linear-momentum-and-its-conservation/4-understand-that-while-momentum-of-a-system-is-always-conserved-in-interactions/) — 3 question items · 3 papers — 3 marks · 2025–2026 ## Topic question rules and edge cases **How many topic questions cover this syllabus point?** 11 question stems cover this subtopic across 11 papers, but only 11 tagged parts and 11 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 2025–2026. 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/cie-ial/physics/9702-paper-1/linear-momentum-and-its-conservation/2-apply-the-principle-of-conservation-of-momentum-to-solve-simple-problems-including/