# Topic Questions: 26 CORE PRACTICAL 2: Use a falling-ball method to determine the viscosity of a liquid — WPH11 Materials

> 14 WPH11 Materials topic questions (33 marks) on 26 CORE PRACTICAL 2: Use a falling-ball method to… — 8 papers, 2019–2025. Open the exact question in the…

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Edexcel IAL · Physics · WPH11 · Materials

14 WPH11 Materials topic questions are tagged to this syllabus point across 8 papers (2019–2025). Only the parts whose knowledge graph matches this syllabus statement are counted, and the table shows which parts of each question are involved.

- 14 topic questions
- 8 papers
- 33 tagged marks
- 5.0% of topic questions
- 4.6% of topic marks
- 2019–2025
- Syllabus 2018–current
- [All WPH11 Materials topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/)
- [All paper codes](https://www.examsci.com/topics/)

Core finding

**This Materials syllabus point appears in 8 WPH11 papers across 2019–2025, contributing 14 topic questions and 33 marks.** The most recent appearance is WPH11/01 June 2025. That equals 5.0% of the 282 topic questions and 4.6% of the 713 marks tagged to Materials. 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 |
| --- | --- | --- | --- | --- | --- | --- |
| [**WPH11/01** June 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-1-wph11/2025-june-wph11-01/#q-16) | **Q16** Determining Viscosity of Vegetable Oil - Edexcel IAL Physics Jun 2025 Q16 | FRQ | 2 of 3 parts ((a), (b)) | 4 of 7 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=2a1cdf33-a9db-4ce2-b66a-788f175d980c&question_id=57562f25-cb17-4a56-87df-6d1e5a279f44&source_detail=WPH11%2F01+June+2025) |
| [**WPH11/01** June 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-1-wph11/2024-june-wph11-01/#q-8) | **Q8** Systematic Error in Free Fall Experiment - Edexcel IAL Physics Jun 2024 Q8 | MCQ | MCQ · 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=60c883e1-3934-457c-b1ff-60cf87441771&question_id=822e6b4d-bbf8-4dfe-a684-e1f110a9c070&source_detail=WPH11%2F01+June+2024) |
| [**WPH11/01** October 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-1-wph11/2023-october-wph11-01/#q-18) | **Q18** Ball-Bearing Falling through Liquid - Edexcel IAL Physics Oct 2023 Q18 | FRQ | 1 of 4 parts ((b)(ii)) | 4 of 13 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=15e3f88f-24f6-422e-8f4a-6de82da3ed98&question_id=31db3fae-712c-4fa5-b99a-442989a2b9fe&source_detail=WPH11%2F01+October+2023) |
| [**WPH11/01** January 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-1-wph11/2023-january-wph11-01/#q-9) | **Q9** Young Modulus Experiment - Edexcel IAL Physics Jan 2023 Q9 | MCQ | MCQ · 1 part | 1 | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=9b8108c7-40af-4a33-b373-0ba0dae27340&question_id=b48ce355-ac62-4668-867b-076b183a3003&source_detail=WPH11%2F01+January+2023) |
| [**WPH11/01** June 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-1-wph11/2021-june-wph11-01/#q-18) | **Q18** Viscosity of a Liquid and Stokes' Law - Edexcel IAL Physics Jun 2021 Q18 | FRQ | 3 of 5 parts ((c)(i), (c)(ii), (c)(iii)) | 8 of 15 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=5059932b-1c99-4e4c-90f2-0dc7111b867a&question_id=e041a5ae-0f57-4a5c-b020-ea504b2988df&source_detail=WPH11%2F01+June+2021) |
| [**WPH11/01** January 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-1-wph11/2021-january-wph11-01/#q-7) | **Q7** Terminal Velocity Practical - Edexcel IAL Physics Jan 2021 Q7 | MCQ | MCQ · 1 part | 1 | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=731e4d52-84b1-40ad-99c4-b89586f8f9db&question_id=1ca942a2-06b1-4e91-882e-35b37d4b840b&source_detail=WPH11%2F01+January+2021) |
| [**WPH11/01** October 2020 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-1-wph11/2020-october-wph11-01/#q-15) | **Q15** Viscosity of Oil Core Practical - Edexcel IAL Physics Oct 2020 Q15 | FRQ | 3 of 6 parts ((a)(i), (a)(ii), (b)(iv)) | 5 of 8 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=de7f3e55-de2d-40f1-9868-c21f740ee82c&question_id=3089741c-358b-4f01-968b-5656338267c0&source_detail=WPH11%2F01+October+2020) |
| [**WPH11/01** October 2019 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-1-wph11/2019-october-wph11-01/#q-15) | **Q15** Core Practical: Viscosity of Washing Up Liquid - Edexcel IAL Physics Oct 2019 Q15 | FRQ | 2 of 4 parts ((a)(i), (a)(ii)) | 9 of 14 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=5f3717ec-f750-4f16-a54f-f18cdccc3eb0&question_id=c67442fc-b751-42a8-a674-aa73d085040b&source_detail=WPH11%2F01+October+2019) |

## Related topic questions in Materials

- [23 be able to use the equation density $\rho=\frac{m}{V}$](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/23-be-able-to-use-the-equation-density-rho-frac-m-v/) — 37 question items · 22 papers — 129 marks · 2019–2026
- [24 understand how to use the relationship upthrust = weight of fluid displaced](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/24-understand-how-to-use-the-relationship-upthrust-weight-of-fluid-displaced/) — 59 question items · 23 papers — 197 marks · 2019–2026
- [25a be able to use the equation for viscous drag (Stokes' Law), $F = 6\pi\eta r v$.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/25a-be-able-to-use-the-equation-for-viscous-drag-stokes-law-f-6-pi-eta-r-v/) — 60 question items · 23 papers — 158 marks · 2019–2026
- [25b understand that this equation applies only to small spherical objects moving at low speeds with laminar flow (or in the absence of turbulent flow) and that viscosity is temperature dependent](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/25b-understand-that-this-equation-applies-only-to-small-spherical-objects-moving-at/) — 52 question items · 22 papers — 113 marks · 2019–2026
- [27 be able to use the Hooke's law equation, $\Delta F=k\Delta x$, where k is the stiffness of the object](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/27-be-able-to-use-the-hooke-s-law-equation-delta-f-k-delta-x-where-k-is-the-stiffness/) — 35 question items · 22 papers — 85 marks · 2019–2026
- [28 understand how to use the relationships • (tensile or compressive) stress = force/cross-sectional area • (tensile or compressive) strain = change in length/original length Young modulus = stress/strain.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/28-understand-how-to-use-the-relationships-tensile-or-compressive-stress-force-cross/) — 62 question items · 23 papers — 165 marks · 2019–2026

## Topic question rules and edge cases

**How many topic questions cover this syllabus point?**

8 question stems cover this subtopic across 8 papers, but only 14 tagged parts and 33 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 2019–2025. 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.

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