# WPH11 Materials Topic Questions

> Edexcel IAL WPH11: every Materials topic question from 23 papers (2019–2026), grouped by syllabus point. 282 questions, 713 marks, with direct links into…

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Edexcel IAL · Physics · WPH11 · A Level

Every WPH11 Materials topic question from the 2018–current syllabus, drawn from 23 papers (2019–2026) and grouped by syllabus point. Each row opens a page listing the exact question numbers, marks and a direct link into the paper. These are questions by topic, not full papers, so you can revise one topic at a time.

- WPH11
- 12 subtopics
- 282 topic questions
- 23 papers
- 713 tagged marks
- [Back to Materials](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/)
- [All paper codes](https://www.examsci.com/topics/)

Core finding

**28 understand how to use the relationships • (tensile or compressive)… is the most frequently assessed subtopic in Materials, with 62 topic questions and 165 marks across 23 papers.** 25a be able to use the equation for viscous drag (Stokes'… follows with 60 topic questions and 158 marks. The topic contains 12 subtopics, 282 topic questions and 713 marks in total. Rows count only the parts tagged to that subtopic, keep the same colour in both charts and repeat paper count, tagged marks and year range in the native table.

## Topic question count and mark distribution

Subtopics are on the vertical axis and sorted from highest to lowest. Only the parts whose knowledge graph matches a subtopic are counted for it, and percentages are each row's share of the tagged total in that chart. A part tagged to several subtopics is counted in each bar, so the bars are not a partition of the topic total.

### Questions by subtopic

question items

- [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/) (23 papers) — 62 · 14.0%
- [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/) (23 papers) — 60 · 13.6%
- [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/) (23 papers) — 59 · 13.3%
- [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/) (22 papers) — 52 · 11.8%
- [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/) (22 papers) — 37 · 8.4%
- [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/) (22 papers) — 35 · 7.9%
- [32 be able to calculate the elastic strain energy $E_{el}$ in a deformed material sample, using the equation $\Delta E_{el}=\frac{1}{2}F\Delta x$, and from the area under the force-extension graph The estimation of area and hence energy change for both linear and non-linear force-extension graphs is expected.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/32-be-able-to-calculate-the-elastic-strain-energy-e-el-in-a-deformed-material-sample/) (23 papers) — 34 · 7.7%
- [29b understand the terms limit of proportionality, elastic limit, yield point, elastic deformation and plastic deformation and be able to apply them to these graphs](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/29b-understand-the-terms-limit-of-proportionality-elastic-limit-yield-point-elastic/) (17 papers) — 26 · 5.9%
- [30 be able to draw and interpret tensile or compressive stress-strain graphs, and understand the term breaking stress](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/30-be-able-to-draw-and-interpret-tensile-or-compressive-stress-strain-graphs-and/) (15 papers) — 25 · 5.7%
- [29a be able to draw and interpret force-extension and force-compression graphs](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/29a-be-able-to-draw-and-interpret-force-extension-and-force-compression-graphs/) (15 papers) — 23 · 5.2%
- [31 CORE PRACTICAL 3: Determine the Young modulus of a material](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/31-core-practical-3-determine-the-young-modulus-of-a-material/) (7 papers) — 15 · 3.4%
- [26 CORE PRACTICAL 2: Use a falling-ball method to determine the viscosity of a liquid](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/26-core-practical-2-use-a-falling-ball-method-to-determine-the-viscosity-of-a-liquid/) (8 papers) — 14 · 3.2%

### Marks by subtopic

marks

- [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/) (23 papers) — 197 · 16.9%
- [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/) (23 papers) — 165 · 14.1%
- [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/) (23 papers) — 158 · 13.5%
- [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/) (22 papers) — 129 · 11.1%
- [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/) (22 papers) — 113 · 9.7%
- [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/) (22 papers) — 85 · 7.3%
- [32 be able to calculate the elastic strain energy $E_{el}$ in a deformed material sample, using the equation $\Delta E_{el}=\frac{1}{2}F\Delta x$, and from the area under the force-extension graph The estimation of area and hence energy change for both linear and non-linear force-extension graphs is expected.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/32-be-able-to-calculate-the-elastic-strain-energy-e-el-in-a-deformed-material-sample/) (23 papers) — 84 · 7.2%
- [30 be able to draw and interpret tensile or compressive stress-strain graphs, and understand the term breaking stress](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/30-be-able-to-draw-and-interpret-tensile-or-compressive-stress-strain-graphs-and/) (15 papers) — 70 · 6.0%
- [31 CORE PRACTICAL 3: Determine the Young modulus of a material](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/31-core-practical-3-determine-the-young-modulus-of-a-material/) (7 papers) — 47 · 4.0%
- [29a be able to draw and interpret force-extension and force-compression graphs](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/29a-be-able-to-draw-and-interpret-force-extension-and-force-compression-graphs/) (15 papers) — 44 · 3.8%
- [29b understand the terms limit of proportionality, elastic limit, yield point, elastic deformation and plastic deformation and be able to apply them to these graphs](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/29b-understand-the-terms-limit-of-proportionality-elastic-limit-yield-point-elastic/) (17 papers) — 42 · 3.6%
- [26 CORE PRACTICAL 2: Use a falling-ball method to determine the viscosity of a liquid](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/26-core-practical-2-use-a-falling-ball-method-to-determine-the-viscosity-of-a-liquid/) (8 papers) — 33 · 2.8%

## Subtopic comparison matrix

Curriculum order is by syllabus number, then alphabetically. Every row links to the matching past-paper question list.

| Subtopic | Topic questions | Papers | Marks | Years | |
| --- | --- | --- | --- | --- | --- |
| **[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 | 22 | 129 | 2019–2026 | [Open topic questions](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/) |
| **[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 | 23 | 197 | 2019–2026 | [Open topic questions](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/) |
| **[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 | 23 | 158 | 2019–2026 | [Open topic questions](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/) |
| **[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 | 22 | 113 | 2019–2026 | [Open topic questions](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/) |
| **[26 CORE PRACTICAL 2: Use a falling-ball method to determine the viscosity of a liquid](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/26-core-practical-2-use-a-falling-ball-method-to-determine-the-viscosity-of-a-liquid/)** | 14 | 8 | 33 | 2019–2025 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/26-core-practical-2-use-a-falling-ball-method-to-determine-the-viscosity-of-a-liquid/) |
| **[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 | 22 | 85 | 2019–2026 | [Open topic questions](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/) |
| **[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 | 23 | 165 | 2019–2026 | [Open topic questions](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/) |
| **[29a be able to draw and interpret force-extension and force-compression graphs](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/29a-be-able-to-draw-and-interpret-force-extension-and-force-compression-graphs/)** | 23 | 15 | 44 | 2019–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/29a-be-able-to-draw-and-interpret-force-extension-and-force-compression-graphs/) |
| **[29b understand the terms limit of proportionality, elastic limit, yield point, elastic deformation and plastic deformation and be able to apply them to these graphs](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/29b-understand-the-terms-limit-of-proportionality-elastic-limit-yield-point-elastic/)** | 26 | 17 | 42 | 2019–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/29b-understand-the-terms-limit-of-proportionality-elastic-limit-yield-point-elastic/) |
| **[30 be able to draw and interpret tensile or compressive stress-strain graphs, and understand the term breaking stress](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/30-be-able-to-draw-and-interpret-tensile-or-compressive-stress-strain-graphs-and/)** | 25 | 15 | 70 | 2019–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/30-be-able-to-draw-and-interpret-tensile-or-compressive-stress-strain-graphs-and/) |
| **[31 CORE PRACTICAL 3: Determine the Young modulus of a material](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/31-core-practical-3-determine-the-young-modulus-of-a-material/)** | 15 | 7 | 47 | 2019–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/31-core-practical-3-determine-the-young-modulus-of-a-material/) |
| **[32 be able to calculate the elastic strain energy $E_{el}$ in a deformed material sample, using the equation $\Delta E_{el}=\frac{1}{2}F\Delta x$, and from the area under the force-extension graph The estimation of area and hence energy change for both linear and non-linear force-extension graphs is expected.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/32-be-able-to-calculate-the-elastic-strain-energy-e-el-in-a-deformed-material-sample/)** | 34 | 23 | 84 | 2019–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/32-be-able-to-calculate-the-elastic-strain-energy-e-el-in-a-deformed-material-sample/) |

## Browse every topic question

- [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
- [26 CORE PRACTICAL 2: Use a falling-ball method to determine the viscosity of a liquid](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/26-core-practical-2-use-a-falling-ball-method-to-determine-the-viscosity-of-a-liquid/) — 14 question items · 8 papers — 33 marks · 2019–2025
- [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
- [29a be able to draw and interpret force-extension and force-compression graphs](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/29a-be-able-to-draw-and-interpret-force-extension-and-force-compression-graphs/) — 23 question items · 15 papers — 44 marks · 2019–2026
- [29b understand the terms limit of proportionality, elastic limit, yield point, elastic deformation and plastic deformation and be able to apply them to these graphs](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/29b-understand-the-terms-limit-of-proportionality-elastic-limit-yield-point-elastic/) — 26 question items · 17 papers — 42 marks · 2019–2026
- [30 be able to draw and interpret tensile or compressive stress-strain graphs, and understand the term breaking stress](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/30-be-able-to-draw-and-interpret-tensile-or-compressive-stress-strain-graphs-and/) — 25 question items · 15 papers — 70 marks · 2019–2026
- [31 CORE PRACTICAL 3: Determine the Young modulus of a material](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/31-core-practical-3-determine-the-young-modulus-of-a-material/) — 15 question items · 7 papers — 47 marks · 2019–2026
- [32 be able to calculate the elastic strain energy $E_{el}$ in a deformed material sample, using the equation $\Delta E_{el}=\frac{1}{2}F\Delta x$, and from the area under the force-extension graph The estimation of area and hence energy change for both linear and non-linear force-extension graphs is expected.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/materials/32-be-able-to-calculate-the-elastic-strain-energy-e-el-in-a-deformed-material-sample/) — 34 question items · 23 papers — 84 marks · 2019–2026

## Other topics in WPH11

- [Mechanics 548 question items](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-1-wph11/mechanics/)

## Topic question rules and edge cases

**How many subtopics does Materials contain?**

This page lists 12 subtopics tagged to the current syllabus. They are ordered by syllabus number, then alphabetically, and each row opens a page of matching past-paper questions.

**How are the subtopic question and mark totals calculated?**

A multiple-choice question contributes one item and its marks to every subtopic it is tagged with. A structured question contributes one item per tagged part, and that part’s marks; untagged parts of the same question are not counted here. A part tagged to several subtopics therefore appears under each of them.

**Why do some subtopics have no numbered prefix?**

Practical-skills statements and some syllabus bullets are unnumbered. Numbered statements come first; unnumbered statements and ties are sorted alphabetically.

**Is the LaTeX rendered without JavaScript?**

Yes. Subtopics that contain formulas are converted to static KaTeX HTML during the build, and the KaTeX stylesheet is served from the same site.

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