# WPH13 Processing Results Topic Questions

> Edexcel IAL WPH13: every Processing Results topic question from 23 papers (2019–2026), grouped by syllabus point. 285 questions, 764 marks, with direct…

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Edexcel IAL · Physics · WPH13 · A Level

Every WPH13 Processing Results 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.

- WPH13
- 12 subtopics
- 285 topic questions
- 23 papers
- 764 tagged marks
- [Back to Processing Results](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/)
- [All paper codes](https://www.examsci.com/topics/)

Core finding

**perform calculations, using the correct number of significant figures is the most frequently assessed subtopic in Processing Results, with 103 topic questions and 287 marks across 23 papers.** determine the relationship between two variables or… follows with 67 topic questions and 178 marks. The topic contains 12 subtopics, 285 topic questions and 764 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

- [• perform calculations, using the correct number of significant figures](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/perform-calculations-using-the-correct-number-of-significant-figures/) (23 papers) — 103 · 27.2%
- [• determine the relationship between two variables or determine a constant with the aid of a graph, e.g. by determining the gradient using a large triangle](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/determine-the-relationship-between-two-variables-or-determine-a-constant-with-the-aid/) (23 papers) — 67 · 17.7%
- [• discuss uncertainties, qualitatively and quantitatively](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/discuss-uncertainties-qualitatively-and-quantitatively/) (22 papers) — 44 · 11.6%
- [• determine the percentage uncertainty in measurements for a single reading using half the resolution of the instrument and from multiple readings using the half range (students are not expected to compound percentage uncertainties).](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/determine-the-percentage-uncertainty-in-measurements-for-a-single-reading-using-half/) (22 papers) — 40 · 10.6%
- [• use the correct units throughout](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/use-the-correct-units-throughout/) (18 papers) — 34 · 9.0%
- [• plot results on a graph using an appropriate scale](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/plot-results-on-a-graph-using-an-appropriate-scale/) (23 papers) — 30 · 7.9%
- [• comment on the relationship obtained from the graph](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-relationship-obtained-from-the-graph/) (15 papers) — 23 · 6.1%
- [• suggest realistic modifications to reduce errors](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/suggest-realistic-modifications-to-reduce-errors/) (17 papers) — 23 · 6.1%
- [• suggest realistic modifications to improve the experiment](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/suggest-realistic-modifications-to-improve-the-experiment/) (11 papers) — 12 · 3.2%
- [• comment on significant figures](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-significant-figures/) (1 papers) — 1 · 0.3%
- [• comment on the number of readings taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-number-of-readings-taken/) (1 papers) — 1 · 0.3%
- [• comment on the range of measurements taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-range-of-measurements-taken/) (1 papers) — 1 · 0.3%

### Marks by subtopic

marks

- [• perform calculations, using the correct number of significant figures](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/perform-calculations-using-the-correct-number-of-significant-figures/) (23 papers) — 287 · 27.3%
- [• determine the relationship between two variables or determine a constant with the aid of a graph, e.g. by determining the gradient using a large triangle](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/determine-the-relationship-between-two-variables-or-determine-a-constant-with-the-aid/) (23 papers) — 178 · 16.9%
- [• plot results on a graph using an appropriate scale](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/plot-results-on-a-graph-using-an-appropriate-scale/) (23 papers) — 134 · 12.7%
- [• use the correct units throughout](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/use-the-correct-units-throughout/) (18 papers) — 117 · 11.1%
- [• discuss uncertainties, qualitatively and quantitatively](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/discuss-uncertainties-qualitatively-and-quantitatively/) (22 papers) — 105 · 10.0%
- [• determine the percentage uncertainty in measurements for a single reading using half the resolution of the instrument and from multiple readings using the half range (students are not expected to compound percentage uncertainties).](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/determine-the-percentage-uncertainty-in-measurements-for-a-single-reading-using-half/) (22 papers) — 84 · 8.0%
- [• suggest realistic modifications to reduce errors](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/suggest-realistic-modifications-to-reduce-errors/) (17 papers) — 55 · 5.2%
- [• comment on the relationship obtained from the graph](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-relationship-obtained-from-the-graph/) (15 papers) — 51 · 4.8%
- [• suggest realistic modifications to improve the experiment](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/suggest-realistic-modifications-to-improve-the-experiment/) (11 papers) — 33 · 3.1%
- [• comment on significant figures](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-significant-figures/) (1 papers) — 3 · 0.3%
- [• comment on the number of readings taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-number-of-readings-taken/) (1 papers) — 3 · 0.3%
- [• comment on the range of measurements taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-range-of-measurements-taken/) (1 papers) — 3 · 0.3%

## 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 | |
| --- | --- | --- | --- | --- | --- |
| **[• comment on significant figures](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-significant-figures/)** | 1 | 1 | 3 | 2024 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-significant-figures/) |
| **[• comment on the number of readings taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-number-of-readings-taken/)** | 1 | 1 | 3 | 2024 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-number-of-readings-taken/) |
| **[• comment on the range of measurements taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-range-of-measurements-taken/)** | 1 | 1 | 3 | 2024 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-range-of-measurements-taken/) |
| **[• comment on the relationship obtained from the graph](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-relationship-obtained-from-the-graph/)** | 23 | 15 | 51 | 2019–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-relationship-obtained-from-the-graph/) |
| **[• determine the percentage uncertainty in measurements for a single reading using half the resolution of the instrument and from multiple readings using the half range (students are not expected to compound percentage uncertainties).](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/determine-the-percentage-uncertainty-in-measurements-for-a-single-reading-using-half/)** | 40 | 22 | 84 | 2019–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/determine-the-percentage-uncertainty-in-measurements-for-a-single-reading-using-half/) |
| **[• determine the relationship between two variables or determine a constant with the aid of a graph, e.g. by determining the gradient using a large triangle](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/determine-the-relationship-between-two-variables-or-determine-a-constant-with-the-aid/)** | 67 | 23 | 178 | 2019–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/determine-the-relationship-between-two-variables-or-determine-a-constant-with-the-aid/) |
| **[• discuss uncertainties, qualitatively and quantitatively](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/discuss-uncertainties-qualitatively-and-quantitatively/)** | 44 | 22 | 105 | 2019–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/discuss-uncertainties-qualitatively-and-quantitatively/) |
| **[• perform calculations, using the correct number of significant figures](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/perform-calculations-using-the-correct-number-of-significant-figures/)** | 103 | 23 | 287 | 2019–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/perform-calculations-using-the-correct-number-of-significant-figures/) |
| **[• plot results on a graph using an appropriate scale](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/plot-results-on-a-graph-using-an-appropriate-scale/)** | 30 | 23 | 134 | 2019–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/plot-results-on-a-graph-using-an-appropriate-scale/) |
| **[• suggest realistic modifications to improve the experiment](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/suggest-realistic-modifications-to-improve-the-experiment/)** | 12 | 11 | 33 | 2019–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/suggest-realistic-modifications-to-improve-the-experiment/) |
| **[• suggest realistic modifications to reduce errors](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/suggest-realistic-modifications-to-reduce-errors/)** | 23 | 17 | 55 | 2019–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/suggest-realistic-modifications-to-reduce-errors/) |
| **[• use the correct units throughout](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/use-the-correct-units-throughout/)** | 34 | 18 | 117 | 2019–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/use-the-correct-units-throughout/) |

## Browse every topic question

- [• comment on significant figures](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-significant-figures/) — 1 question items · 1 papers — 3 marks · 2024
- [• comment on the number of readings taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-number-of-readings-taken/) — 1 question items · 1 papers — 3 marks · 2024
- [• comment on the range of measurements taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-range-of-measurements-taken/) — 1 question items · 1 papers — 3 marks · 2024
- [• comment on the relationship obtained from the graph](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/comment-on-the-relationship-obtained-from-the-graph/) — 23 question items · 15 papers — 51 marks · 2019–2026
- [• determine the percentage uncertainty in measurements for a single reading using half the resolution of the instrument and from multiple readings using the half range (students are not expected to compound percentage uncertainties).](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/determine-the-percentage-uncertainty-in-measurements-for-a-single-reading-using-half/) — 40 question items · 22 papers — 84 marks · 2019–2026
- [• determine the relationship between two variables or determine a constant with the aid of a graph, e.g. by determining the gradient using a large triangle](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/determine-the-relationship-between-two-variables-or-determine-a-constant-with-the-aid/) — 67 question items · 23 papers — 178 marks · 2019–2026
- [• discuss uncertainties, qualitatively and quantitatively](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/discuss-uncertainties-qualitatively-and-quantitatively/) — 44 question items · 22 papers — 105 marks · 2019–2026
- [• perform calculations, using the correct number of significant figures](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/perform-calculations-using-the-correct-number-of-significant-figures/) — 103 question items · 23 papers — 287 marks · 2019–2026
- [• plot results on a graph using an appropriate scale](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/plot-results-on-a-graph-using-an-appropriate-scale/) — 30 question items · 23 papers — 134 marks · 2019–2026
- [• suggest realistic modifications to improve the experiment](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/suggest-realistic-modifications-to-improve-the-experiment/) — 12 question items · 11 papers — 33 marks · 2019–2026
- [• suggest realistic modifications to reduce errors](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/suggest-realistic-modifications-to-reduce-errors/) — 23 question items · 17 papers — 55 marks · 2019–2026
- [• use the correct units throughout](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/use-the-correct-units-throughout/) — 34 question items · 18 papers — 117 marks · 2019–2026

## Other topics in WPH13

- [Implementation and measurements 56 question items](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/implementation-and-measurements/)
- [Planning 173 question items](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/planning/)

## Topic question rules and edge cases

**How many subtopics does Processing Results 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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Full page with native tables, bar charts and Practice Hub links: https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-3-wph13/processing-results/