# Topic Questions: • comment on significant figures — WPH13 Implementation and measurements > 21 WPH13 Implementation and measurements topic questions (47 marks) on comment on significant figures — 19 papers, 2019–2026. Open the exact question in the… - Canonical HTML: https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/implementation-and-measurements/comment-on-significant-figures/ - Markdown mirror: https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/implementation-and-measurements/comment-on-significant-figures/index.md --- Edexcel IAL · Physics · WPH13 · Implementation and measurements 21 WPH13 Implementation and measurements topic questions are tagged to this syllabus point across 19 papers (2019–2026). Only the parts whose knowledge graph matches this syllabus statement are counted, and the table shows which parts of each question are involved. - 21 topic questions - 19 papers - 47 tagged marks - 37.5% of topic questions - 34.6% of topic marks - 2019–2026 - Syllabus 2018–current - [All WPH13 Implementation and measurements topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/implementation-and-measurements/) - [All paper codes](https://www.examsci.com/topics/) Core finding **This Implementation and measurements syllabus point appears in 19 WPH13 papers across 2019–2026, contributing 21 topic questions and 47 marks.** The most recent appearance is WPH13/01 January 2026. That equals 37.5% of the 56 topic questions and 34.6% of the 136 marks tagged to Implementation and measurements. 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 | | --- | --- | --- | --- | --- | --- | --- | | [**WPH13/01** January 2026 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2026-january-wph13-01/#q-1) | **Q1** Energy Transfer Investigation - Edexcel IAL Physics Jan 2026 Q1 | FRQ | 1 of 4 parts ((b)) | 3 of 9 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=8d01f9b7-8e30-48ac-a430-6de766cef2b0&question_id=9e7ecfea-9e44-4b0f-9885-2af5718dc93a&source_detail=WPH13%2F01+January+2026) | | [**WPH13/01** January 2026 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2026-january-wph13-01/#q-2) | **Q2** Pulse-Echo Technique Distance Determination - Edexcel IAL Physics Jan 2026 Q2 | FRQ | 1 of 8 parts ((b)(i)) | 3 of 16 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=8d01f9b7-8e30-48ac-a430-6de766cef2b0&question_id=09025db0-555c-488e-95d0-21aeea42cc69&source_detail=WPH13%2F01+January+2026) | | [**WPH13/02** January 2026 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2026-january-wph13-02/#q-4) | **Q4** Coefficient of Restitution of a Metal Cube - Edexcel IAL Physics Jan 2026 Q4 | FRQ | 1 of 5 parts ((a)(i)) | 2 of 15 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=0e15e7f0-76ca-4122-bd1d-b46bf135a7c9&question_id=f475ba21-2eac-477e-85bd-b9cfa2a089d2&source_detail=WPH13%2F02+January+2026) | | [**WPH13/01** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2025-october-wph13-01/#q-3) | **Q3** Strain Gauge Characteristics - Edexcel IAL Physics Oct 2025 Q3 | FRQ | 1 of 5 parts ((b)(iii)) | 3 of 12 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=c0aadfb9-2632-4fe0-9c0d-03b56e3212b2&question_id=e623c29e-a8b9-48ea-9ee3-3cbd4c53a18a&source_detail=WPH13%2F01+October+2025) | | [**WPH13/02** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2025-october-wph13-02/#q-1) | **Q1** Thickness and Density of Paper - Edexcel IAL Physics Unit 3 Oct 2025 Q1 | FRQ | 1 of 5 parts ((b)(i)) | 3 of 12 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=002112a6-a745-40d7-be73-302abd93187e&question_id=e9896af4-9feb-4e5b-8a42-38989e01d0d9&source_detail=WPH13%2F02+October+2025) | | [**WPH13/02** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2025-october-wph13-02/#q-4) | **Q4** LED Activation Potential Difference - Edexcel IAL Physics Unit 3 Oct 2025 Q4 | FRQ | 1 of 5 parts ((b)(i)) | 2 of 15 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=002112a6-a745-40d7-be73-302abd93187e&question_id=224c7af7-bfc0-4277-9190-714de7bcecf2&source_detail=WPH13%2F02+October+2025) | | [**WPH13/01** June 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2025-june-wph13-01/#q-2) | **Q2** Sphere on a Curved Track - Edexcel IAL Physics Unit 3 June 2025 Q2 | FRQ | 1 of 5 parts ((c)) | 3 of 12 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=7df7c7c2-50ad-42f0-85d6-ccf3f07614ab&question_id=b97a3547-55d3-44ab-b0d1-8e69eebc0836&source_detail=WPH13%2F01+June+2025) | | [**WPH13/01** January 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2025-january-wph13-01/#q-2) | **Q2** Fibre-reinforced Concrete - Edexcel IAL Physics Jan 2025 Q2 | FRQ | 1 of 4 parts ((b)(i)) | 2 of 10 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=2ba285dd-2b16-44c5-90cf-c51fd2656fc6&question_id=cd6a05f3-aed5-4a2c-87fb-f925dec307c3&source_detail=WPH13%2F01+January+2025) | | [**WPH13/01** October 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2024-october-wph13-01/#q-3) | **Q3** Refractive Index of a Liquid - Edexcel IAL Physics Oct 2024 Unit 3 Q3 | FRQ | 1 of 4 parts ((b)) | 3 of 10 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=719faec4-3ae4-45e2-b42d-df14b4d16b1e&question_id=8f0a1d13-f3c3-46e7-aa5a-70486d09a00f&source_detail=WPH13%2F01+October+2024) | | [**WPH13/01** January 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2024-january-wph13-01/#q-4) | **Q4** Inverse Square Law for Light - Edexcel IAL Physics Jan 2024 Q4 | FRQ | 1 of 6 parts ((b)(ii)) | 2 of 18 on the paper | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=501595e3-ad9f-48ab-ab6e-9341e5c65a58&question_id=b6b18eaf-fc99-41b7-b8de-d37ab05198a8&source_detail=WPH13%2F01+January+2024) | | [**WPH13/01** October 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2023-october-wph13-01/#q-3) | **Q3** Water Wave Speed Investigation - Edexcel IAL Physics Oct 2023 Q3 | FRQ | 1 of 4 parts ((b)(ii)) | 1 of 10 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=a0875d97-cce0-4bf9-b7a9-0c3ef254e878&question_id=df26249b-7ff0-44d6-90fe-5aa379905834&source_detail=WPH13%2F01+October+2023) | | [**WPH13/01** January 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2023-january-wph13-01/#q-3) | **Q3** Stretching of a Spring - Edexcel IAL Physics Jan 2023 Q3 | FRQ | 1 of 7 parts ((b)(i)) | 1 of 12 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=a6f19e12-60ad-4fcb-a01a-059cf8192681&question_id=48e96a85-3c96-41e6-9ba6-b335f2ec2326&source_detail=WPH13%2F01+January+2023) | | [**WPH13/01** October 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2022-october-wph13-01/#q-4) | **Q4** Bending of a Plastic Beam - Edexcel IAL Physics Oct 2022 Q4 | FRQ | 1 of 7 parts ((a)) | 2 of 17 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=6442a3d0-c94a-4578-83c9-cdc721b9cadf&question_id=677e20dd-9201-4e96-920a-b8623d87d374&source_detail=WPH13%2F01+October+2022) | | [**WPH13/01** June 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2022-june-wph13-01/#q-4) | **Q4** Projectile Motion of a Sphere from a Track - Edexcel IAL Physics Unit 3 June 2022 Q4 | FRQ | 1 of 5 parts ((b)) | 2 of 16 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e38f0c8e-5e95-4bb5-b2e9-2a6e17ae94dc&question_id=fc898adb-8e0e-4e8f-9a7a-510a0e401cbe&source_detail=WPH13%2F01+June+2022) | | [**WPH13/01** January 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2022-january-wph13-01/#q-3) | **Q3** Forces Acting on a Bracket - Edexcel IAL Physics Unit 3 Jan 2022 Q3 | FRQ | 1 of 5 parts ((c)) | 3 of 11 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=7a188e51-aa68-4a1f-8490-4d847ae5e05e&question_id=3c5c90f2-a969-4823-a9ec-1424e8880bbd&source_detail=WPH13%2F01+January+2022) | | [**WPH13/02** January 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2022-january-wph13-02/#q-1) | **Q1** Ball Bounce Height vs Temperature - Edexcel IAL Physics Jan 2022 Q1 | FRQ | 1 of 8 parts ((d)) | 2 of 14 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=2f547a43-85bd-434c-905c-6bbb0137b0e9&question_id=d55c36df-657c-453a-86f4-fe609c2a771c&source_detail=WPH13%2F02+January+2022) | | [**WPH13/01** October 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2021-october-wph13-01/#q-4) | **Q4** Coefficient of Restitution - Edexcel IAL Physics Oct 2021 Q4 | FRQ | 1 of 6 parts ((a)(i)) | 2 of 17 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e7d035eb-346b-431d-b65e-0557dcdf57f7&question_id=67a11b80-a142-4281-ac65-ac525a677672&source_detail=WPH13%2F01+October+2021) | | [**WPH13/01** January 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2021-january-wph13-01/#q-5) | **Q5** Temperature Coefficient of Resistance of Copper Wire - Edexcel IAL Physics Jan 2021 Q5 | FRQ | 1 of 4 parts ((a)) | 2 of 15 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=d9668e24-eb26-4252-ba1c-40c6549c6ec4&question_id=203bedc3-38c9-4202-abe4-04a6fe79ec65&source_detail=WPH13%2F01+January+2021) | | [**WPH13/01** October 2020 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2020-october-wph13-01/#q-3) | **Q3** Solar Cell Power Output and Temperature - Edexcel IAL Physics June 2020 Q3 | FRQ | 1 of 7 parts ((f)(i)) | 2 of 15 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e560e478-0590-40db-8356-fbf3e745b587&question_id=f7c0a9f9-d9b8-4f77-b472-ec8feb8b1f47&source_detail=WPH13%2F01+October+2020) | | [**WPH13/01** January 2020 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2020-january-wph13-01/#q-4) | **Q4** Efficiency of an Electric Motor - Edexcel IAL Physics Jan 2020 Q4 | FRQ | 1 of 5 parts ((a)) | 2 of 15 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=1b9afb38-97c4-4903-8f19-243fc9eab228&question_id=9015b518-cc9b-4255-81da-ad192be3562c&source_detail=WPH13%2F01+January+2020) | | [**WPH13/01** June 2019 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-3-wph13/2019-june-wph13-01/#q-3) | **Q3** Electron Diffraction and de Broglie Wavelength - Edexcel IAL Physics June 2019 Q3 | FRQ | 1 of 6 parts ((c)(i)) | 2 of 19 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=279b66f0-edd7-451f-b995-9b128999bdec&question_id=8d92173c-d4c4-434a-a9a4-deebcaa92061&source_detail=WPH13%2F01+June+2019) | ## Related topic questions in Implementation and measurements - [• check a reading that is inconsistent with other readings, e.g. a point that is not on the line of a graph - students may be shown a diagram of a micrometer that is being used to measure the diameter of a wire and be expected to write down the reading to the correct number of significant figures](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/implementation-and-measurements/check-a-reading-that-is-inconsistent-with-other-readings-e-g-a-point-that-is-not-on/) — 11 question items · 10 papers — 28 marks · 2019–2025 - [• comment on how the experiment may be improved, possibly by using additional apparatus (e.g. to reduce errors) - examples may include using a set square to determine whether a ruler is vertical to aid the measurement of the extension of a spring.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/implementation-and-measurements/comment-on-how-the-experiment-may-be-improved-possibly-by-using-additional-apparatus/) — 21 question items · 15 papers — 55 marks · 2019–2026 - [• comment on the number of readings taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/implementation-and-measurements/comment-on-the-number-of-readings-taken/) — 15 question items · 13 papers — 35 marks · 2019–2026 - [• comment on the range of measurements taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/implementation-and-measurements/comment-on-the-range-of-measurements-taken/) — 6 question items · 6 papers — 15 marks · 2020–2026 ## Topic question rules and edge cases **How many topic questions cover this syllabus point?** 21 question stems cover this subtopic across 19 papers, but only 21 tagged parts and 47 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 2019–2026. 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-3-wph13/implementation-and-measurements/comment-on-significant-figures/