Edexcel IAL · Physics · WPH11 · Materials
Topic Questions: 24 understand how to use the relationship upthrust = weight of fluid displaced — WPH11 Materials
59 WPH11 Materials topic questions are tagged to this syllabus point across 23 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.
Core finding
This Materials syllabus point appears in 23 WPH11 papers across 2019–2026, contributing 59 topic questions and 197 marks. The most recent appearance is WPH11/01 January 2026. That equals 20.9% of the 282 topic questions and 27.6% 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 |
|---|---|---|---|---|---|---|
| WPH11/01January 2026 · Edexcel IAL | Q15 Stokes' Law and Viscosity - Edexcel IAL Physics Unit 1 Jan 2026 Q15 |
FRQ | 1 of 3 parts ((c)) | 5 of 10 on the paper |
Easy | Go to Practice Hub |
| WPH11/02January 2026 · Edexcel IAL | Q7 Upthrust and Viscous Drag - Edexcel IAL Physics Jan 2026 Q7 |
MCQ | MCQ · 1 part | 1 | Medium | Go to Practice Hub |
| WPH11/02January 2026 · Edexcel IAL | Q15 Galilean Thermometer Principles - Edexcel IAL Physics Jan 2026 Q15 |
FRQ | 1 part | 6 | Hard | Go to Practice Hub |
| WPH11/01October 2025 · Edexcel IAL | Q5 Upwards Moving Balloon forces - Edexcel IAL Physics Oct 2025 Q5 |
MCQ | MCQ · 1 part | 1 | Medium | Go to Practice Hub |
| WPH11/01October 2025 · Edexcel IAL | Q17 Seawater Lifting Bag and Air Bubble - Edexcel IAL Physics Oct 2025 Q17 |
FRQ | 1 of 3 parts ((a)) | 6 of 11 on the paper |
Easy | Go to Practice Hub |
| WPH11/02October 2025 · Edexcel IAL | Q19 Forces on Uniform Solid Sphere in Fluid - Edexcel IAL Physics Oct 2025 Q19 |
FRQ | 4 parts ((a), (b)(i), (b)(ii), (b)(iii)) | 12 | Medium | Go to Practice Hub |
| WPH11/01June 2025 · Edexcel IAL | Q1 Magnitude of Upthrust - Edexcel IAL Physics Jun 2025 Q1 |
MCQ | MCQ · 1 part | 1 | Easy | Go to Practice Hub |
| WPH11/01January 2025 · Edexcel IAL | Q18 Submarine Resultant Forces and Crane Tension - Edexcel IAL Physics Jan 2025 Q18 |
FRQ | 1 of 2 parts ((b)) | 6 of 11 on the paper |
Medium | Go to Practice Hub |
| WPH11/01January 2025 · Edexcel IAL | Q20 Terminal Velocity of a Falling Sphere in Oil - Edexcel IAL Physics Jan 2025 Q20 |
FRQ | 2 of 3 parts ((a), (b)(ii)) | 7 of 10 on the paper |
Easy | Go to Practice Hub |
| WPH11/01October 2024 · Edexcel IAL | Q16 Hydrometer Floating Equilibrium - Edexcel IAL Physics Oct 2024 Q16 |
FRQ | 3 parts ((a), (b)(i), (b)(ii)) | 10 | Medium | Go to Practice Hub |
| WPH11/01October 2024 · Edexcel IAL | Q19 Stokes' Law and Dive Velocity Analysis - Edexcel IAL Physics Oct 2024 Q19 |
FRQ | 1 of 4 parts ((a)(ii)) | 5 of 12 on the paper |
Medium | Go to Practice Hub |
| WPH11/01June 2024 · Edexcel IAL | Q12 Upthrust and Density of an Iceberg - Edexcel IAL Physics Jun 2024 Q12 |
FRQ | 2 parts ((a), (b)) | 5 | Medium | Go to Practice Hub |
| WPH11/01January 2024 · Edexcel IAL | Q13 Cartesian Diver Density and Forces - Edexcel IAL Physics Jan 2024 Q13 |
FRQ | 1 part | 3 | Medium | Go to Practice Hub |
| WPH11/01January 2024 · Edexcel IAL | Q15 Viscosity of Liquid and Stokes' Law - Edexcel IAL Physics Jan 2024 Q15 |
FRQ | 2 of 3 parts ((b)(i), (b)(ii)) | 8 of 10 on the paper |
Easy | Go to Practice Hub |
| WPH11/01October 2023 · Edexcel IAL | Q17 Weather Balloon Buoyancy and Motion - Edexcel IAL Physics Oct 2023 Q17 |
FRQ | 4 parts ((a), (b)(i), (b)(ii), (c)) | 14 | Hard | Go to Practice Hub |
| WPH11/01June 2023 · Edexcel IAL | Q16 Air Bubble Viscous Drag and Stokes' Law - Edexcel IAL Physics Unit 1 Summer 2023 Q16 |
FRQ | 2 of 3 parts ((b)(i), (b)(ii)) | 6 of 7 on the paper |
Easy | Go to Practice Hub |
| WPH11/01June 2023 · Edexcel IAL | Q17 Buoy Forces and Equilibrium - Edexcel IAL Physics Unit 1 Summer 2023 Q17 |
FRQ | 1 of 3 parts ((a)(ii)) | 3 of 8 on the paper |
Easy | Go to Practice Hub |
| WPH11/01January 2023 · Edexcel IAL | Q12 Viscosity of a Liquid - Edexcel IAL Physics Jan 2023 Q12 |
FRQ | 1 of 2 parts ((a)) | 4 of 6 on the paper |
Medium | Go to Practice Hub |
| WPH11/01January 2023 · Edexcel IAL | Q18 Terminal Velocity and Buoyancy - Edexcel IAL Physics Jan 2023 Q18 |
FRQ | 2 of 4 parts ((a)(i), (b)) | 8 of 12 on the paper |
Medium | Go to Practice Hub |
| WPH11/01October 2022 · Edexcel IAL | Q14 Helium Balloon Forces and Upwards Motion - Edexcel IAL Physics Oct 2022 Q14 |
FRQ | 1 of 2 parts ((a)) | 4 of 10 on the paper |
Medium | Go to Practice Hub |
| WPH11/01October 2022 · Edexcel IAL | Q17 Sinking Foraminifera and Stokes' Law - Edexcel IAL Physics Oct 2022 Q17 |
FRQ | 1 of 3 parts ((a)(i)) | 3 of 9 on the paper |
Medium | Go to Practice Hub |
| WPH11/01June 2022 · Edexcel IAL | Q2 Forces on falling sphere - Edexcel IAL Physics Jun 2022 Q2 |
MCQ | MCQ · 1 part | 1 | Medium | Go to Practice Hub |
| WPH11/01June 2022 · Edexcel IAL | Q15 Galilean Thermometer Physics - Edexcel IAL Physics Jun 2022 Q15 |
FRQ | 1 part | 6 | Medium | Go to Practice Hub |
| WPH11/01June 2022 · Edexcel IAL | Q19 Viscometer and Stokes' Law - Edexcel IAL Physics Jun 2022 Q19 |
FRQ | 1 of 5 parts ((b)(ii)) | 3 of 14 on the paper |
Easy | Go to Practice Hub |
| WPH11/01January 2022 · Edexcel IAL | Q15 Floating Brass Cylinder - Edexcel IAL Physics Jan 2022 Q15 |
FRQ | 3 parts ((a), (b)(i), (b)(ii)) | 10 | Medium | Go to Practice Hub |
| WPH11/01October 2021 · Edexcel IAL | Q17 Water Droplets in Oil - Edexcel IAL Physics Oct 2021 Q17 |
FRQ | 1 of 5 parts ((b)(ii)) | 2 of 11 on the paper |
Easy | Go to Practice Hub |
| WPH11/01June 2021 · Edexcel IAL | Q13 Submarine Upthrust and Density - Edexcel IAL Physics Jun 2021 Q13 |
FRQ | 4 parts ((a)(i), (a)(ii), (b)(i), (b)(ii)) | 9 | Easy | Go to Practice Hub |
| WPH11/01June 2021 · Edexcel IAL | Q18 Viscosity of a Liquid and Stokes' Law - Edexcel IAL Physics Jun 2021 Q18 |
FRQ | 1 of 5 parts ((b)) | 5 of 15 on the paper |
Medium | Go to Practice Hub |
| WPH11/01January 2021 · Edexcel IAL | Q18 Viscosity of Oil and Stokes' Law - Edexcel IAL Physics Jan 2021 Q18 |
FRQ | 3 of 4 parts ((a), (b), (c)(ii)) | 10 of 11 on the paper |
Easy | Go to Practice Hub |
| WPH11/01October 2020 · Edexcel IAL | Q15 Viscosity of Oil Core Practical - Edexcel IAL Physics Oct 2020 Q15 |
FRQ | 1 of 6 parts ((b)(ii)) | 1 of 8 on the paper |
Easy | Go to Practice Hub |
| WPH11/01January 2020 · Edexcel IAL | Q12 Stokes' Law Applicability Assessment - Edexcel IAL Physics Jan 2020 Q12 |
FRQ | 1 of 2 parts ((b)) | 5 of 6 on the paper |
Easy | Go to Practice Hub |
| WPH11/01January 2020 · Edexcel IAL | Q19 Forces on a Sphere Suspended in Water - Edexcel IAL Physics Jan 2020 Q19 |
FRQ | 4 parts ((a), (b)(i), (b)(ii), (b)(iii)) | 12 | Medium | Go to Practice Hub |
| WPH11/01October 2019 · Edexcel IAL | Q14 Boat Stability and Ballast Tanks - Edexcel IAL Physics Oct 2019 Q14 |
FRQ | 1 of 4 parts ((b)(i)) | 4 of 11 on the paper |
Easy | Go to Practice Hub |
| WPH11/01October 2019 · Edexcel IAL | Q15 Core Practical: Viscosity of Washing Up Liquid - Edexcel IAL Physics Oct 2019 Q15 |
FRQ | 1 of 4 parts ((b)(ii)) | 4 of 14 on the paper |
Medium | Go to Practice Hub |
| WPH11/01June 2019 · Edexcel IAL | Q3 Floating Sphere Upthrust - Edexcel IAL Physics Jun 2019 Q3 |
MCQ | MCQ · 1 part | 1 | Medium | Go to Practice Hub |
| WPH11/01January 2019 · Edexcel IAL | Q14 Analysis of Floating Eggs - Edexcel IAL Physics Jan 2019 Q14 |
FRQ | 1 part | 6 | Medium | Go to Practice Hub |
Related topic questions in Materials
23 be able to use the equation density
129 marks · 2019–2026
25a be able to use the equation for viscous drag (Stokes' Law), .
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
113 marks · 2019–2026
26 CORE PRACTICAL 2: Use a falling-ball method to determine the viscosity of a liquid
33 marks · 2019–2025
27 be able to use the Hooke's law equation, , where k is the stiffness of the object
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.
165 marks · 2019–2026
Topic question rules and edge cases
- How many topic questions cover this syllabus point?
- 36 question stems cover this subtopic across 23 papers, but only 59 tagged parts and 197 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.