# WPH16 Analysis Topic Questions

> Edexcel IAL WPH16: every Analysis topic question from 20 papers (2020–2026), grouped by syllabus point. 256 questions, 768 marks, with direct links into the…

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Edexcel IAL · Physics · WPH16 · A Level

Every WPH16 Analysis topic question from the 2018–current syllabus, drawn from 20 papers (2020–2026) 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.

- WPH16
- 11 subtopics
- 256 topic questions
- 20 papers
- 768 tagged marks
- [Back to Analysis](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/)
- [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 Analysis, with 128 topic questions and 411 marks across 20 papers.** determine the relationship between two variables or… follows with 74 topic questions and 247 marks. The topic contains 11 subtopics, 256 topic questions and 768 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-6-wph16/analysis/perform-calculations-using-the-correct-number-of-significant-figures/) (20 papers) — 128 · 26.4%
- [• determine the relationship between two variables or determine a constant with the aid of the graph, e.g. by determining the gradient using a large triangle](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/determine-the-relationship-between-two-variables-or-determine-a-constant-with-the-aid/) (20 papers) — 74 · 15.3%
- [• discuss uncertainties qualitatively and quantitatively](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/discuss-uncertainties-qualitatively-and-quantitatively/) (20 papers) — 60 · 12.4%
- [• plot results on a graph using an appropriate scale and units the graph could be logarithmic in nature](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/plot-results-on-a-graph-using-an-appropriate-scale-and-units-the-graph-could-be/) (20 papers) — 54 · 11.1%
- [• use the correct units throughout](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/use-the-correct-units-throughout/) (20 papers) — 51 · 10.5%
- [• 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.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/determine-the-percentage-uncertainty-in-measurements-for-a-single-reading-using-half/) (20 papers) — 41 · 8.5%
- [• compound percentage uncertainties correctly](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/compound-percentage-uncertainties-correctly/) (20 papers) — 33 · 6.8%
- [• comment on the trend/pattern obtained](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/comment-on-the-trend-pattern-obtained/) (11 papers) — 15 · 3.1%
- [• use the terms precision, accuracy and sensitivity appropriately](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/use-the-terms-precision-accuracy-and-sensitivity-appropriately/) (7 papers) — 12 · 2.5%
- [• suggest realistic modifications to reduce errors](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/suggest-realistic-modifications-to-reduce-errors/) (9 papers) — 10 · 2.1%
- [• suggest realistic modifications to improve the experiment](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/suggest-realistic-modifications-to-improve-the-experiment/) (6 papers) — 7 · 1.4%

### Marks by subtopic

marks

- [• perform calculations, using the correct number of significant figures](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/perform-calculations-using-the-correct-number-of-significant-figures/) (20 papers) — 411 · 26.5%
- [• determine the relationship between two variables or determine a constant with the aid of the graph, e.g. by determining the gradient using a large triangle](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/determine-the-relationship-between-two-variables-or-determine-a-constant-with-the-aid/) (20 papers) — 247 · 15.9%
- [• plot results on a graph using an appropriate scale and units the graph could be logarithmic in nature](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/plot-results-on-a-graph-using-an-appropriate-scale-and-units-the-graph-could-be/) (20 papers) — 241 · 15.6%
- [• use the correct units throughout](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/use-the-correct-units-throughout/) (20 papers) — 180 · 11.6%
- [• discuss uncertainties qualitatively and quantitatively](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/discuss-uncertainties-qualitatively-and-quantitatively/) (20 papers) — 152 · 9.8%
- [• compound percentage uncertainties correctly](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/compound-percentage-uncertainties-correctly/) (20 papers) — 105 · 6.8%
- [• 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.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/determine-the-percentage-uncertainty-in-measurements-for-a-single-reading-using-half/) (20 papers) — 105 · 6.8%
- [• comment on the trend/pattern obtained](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/comment-on-the-trend-pattern-obtained/) (11 papers) — 42 · 2.7%
- [• use the terms precision, accuracy and sensitivity appropriately](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/use-the-terms-precision-accuracy-and-sensitivity-appropriately/) (7 papers) — 31 · 2.0%
- [• suggest realistic modifications to reduce errors](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/suggest-realistic-modifications-to-reduce-errors/) (9 papers) — 21 · 1.4%
- [• suggest realistic modifications to improve the experiment](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/suggest-realistic-modifications-to-improve-the-experiment/) (6 papers) — 14 · 0.9%

## 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 the trend/pattern obtained](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/comment-on-the-trend-pattern-obtained/)** | 15 | 11 | 42 | 2020–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/comment-on-the-trend-pattern-obtained/) |
| **[• compound percentage uncertainties correctly](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/compound-percentage-uncertainties-correctly/)** | 33 | 20 | 105 | 2020–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/compound-percentage-uncertainties-correctly/) |
| **[• 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.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/determine-the-percentage-uncertainty-in-measurements-for-a-single-reading-using-half/)** | 41 | 20 | 105 | 2020–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/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 the graph, e.g. by determining the gradient using a large triangle](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/determine-the-relationship-between-two-variables-or-determine-a-constant-with-the-aid/)** | 74 | 20 | 247 | 2020–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/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-6-wph16/analysis/discuss-uncertainties-qualitatively-and-quantitatively/)** | 60 | 20 | 152 | 2020–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/discuss-uncertainties-qualitatively-and-quantitatively/) |
| **[• perform calculations, using the correct number of significant figures](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/perform-calculations-using-the-correct-number-of-significant-figures/)** | 128 | 20 | 411 | 2020–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/perform-calculations-using-the-correct-number-of-significant-figures/) |
| **[• plot results on a graph using an appropriate scale and units the graph could be logarithmic in nature](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/plot-results-on-a-graph-using-an-appropriate-scale-and-units-the-graph-could-be/)** | 54 | 20 | 241 | 2020–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/plot-results-on-a-graph-using-an-appropriate-scale-and-units-the-graph-could-be/) |
| **[• suggest realistic modifications to improve the experiment](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/suggest-realistic-modifications-to-improve-the-experiment/)** | 7 | 6 | 14 | 2020–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/suggest-realistic-modifications-to-improve-the-experiment/) |
| **[• suggest realistic modifications to reduce errors](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/suggest-realistic-modifications-to-reduce-errors/)** | 10 | 9 | 21 | 2020–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/suggest-realistic-modifications-to-reduce-errors/) |
| **[• use the correct units throughout](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/use-the-correct-units-throughout/)** | 51 | 20 | 180 | 2020–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/use-the-correct-units-throughout/) |
| **[• use the terms precision, accuracy and sensitivity appropriately](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/use-the-terms-precision-accuracy-and-sensitivity-appropriately/)** | 12 | 7 | 31 | 2021–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/use-the-terms-precision-accuracy-and-sensitivity-appropriately/) |

## Browse every topic question

- [• comment on the trend/pattern obtained](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/comment-on-the-trend-pattern-obtained/) — 15 question items · 11 papers — 42 marks · 2020–2026
- [• compound percentage uncertainties correctly](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/compound-percentage-uncertainties-correctly/) — 33 question items · 20 papers — 105 marks · 2020–2026
- [• 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.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/determine-the-percentage-uncertainty-in-measurements-for-a-single-reading-using-half/) — 41 question items · 20 papers — 105 marks · 2020–2026
- [• determine the relationship between two variables or determine a constant with the aid of the graph, e.g. by determining the gradient using a large triangle](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/determine-the-relationship-between-two-variables-or-determine-a-constant-with-the-aid/) — 74 question items · 20 papers — 247 marks · 2020–2026
- [• discuss uncertainties qualitatively and quantitatively](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/discuss-uncertainties-qualitatively-and-quantitatively/) — 60 question items · 20 papers — 152 marks · 2020–2026
- [• perform calculations, using the correct number of significant figures](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/perform-calculations-using-the-correct-number-of-significant-figures/) — 128 question items · 20 papers — 411 marks · 2020–2026
- [• plot results on a graph using an appropriate scale and units the graph could be logarithmic in nature](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/plot-results-on-a-graph-using-an-appropriate-scale-and-units-the-graph-could-be/) — 54 question items · 20 papers — 241 marks · 2020–2026
- [• suggest realistic modifications to improve the experiment](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/suggest-realistic-modifications-to-improve-the-experiment/) — 7 question items · 6 papers — 14 marks · 2020–2026
- [• suggest realistic modifications to reduce errors](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/suggest-realistic-modifications-to-reduce-errors/) — 10 question items · 9 papers — 21 marks · 2020–2026
- [• use the correct units throughout](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/use-the-correct-units-throughout/) — 51 question items · 20 papers — 180 marks · 2020–2026
- [• use the terms precision, accuracy and sensitivity appropriately](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/use-the-terms-precision-accuracy-and-sensitivity-appropriately/) — 12 question items · 7 papers — 31 marks · 2021–2026

## Other topics in WPH16

- [Implementation and Measurements 38 question items](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/)
- [Planning 109 question items](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/planning/)

## Topic question rules and edge cases

**How many subtopics does Analysis contain?**

This page lists 11 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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