# WPH16 Implementation and Measurements Topic Questions > Edexcel IAL WPH16: every Implementation and Measurements topic question from 16 papers (2021–2026), grouped by syllabus point. 38 questions, 91 marks, with… - Canonical HTML: https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/ - Markdown mirror: https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/index.md --- Edexcel IAL · Physics · WPH16 · A Level Every WPH16 Implementation and Measurements topic question from the 2018–current syllabus, drawn from 16 papers (2021–2026) 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 - 6 subtopics - 38 topic questions - 16 papers - 91 tagged marks - [Back to Implementation and Measurements](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/) - [All paper codes](https://www.examsci.com/topics/) Core finding **comment on how the experiment could have been improved, possibly by… is the most frequently assessed subtopic in Implementation and Measurements, with 22 topic questions and 51 marks across 14 papers.** comment on the number of readings taken follows with 13 topic questions and 31 marks. The topic contains 6 subtopics, 38 topic questions and 91 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 - [• comment on how the experiment could have been improved, possibly by using additional apparatus (e.g. to reduce errors) examples may include using set squares to measure the diameter of a cylinder and using a marker for timing oscillations](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-how-the-experiment-could-have-been-improved-possibly-by-using-additional/) (14 papers) — 22 · 38.6% - [• comment on the number of readings taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-the-number-of-readings-taken/) (11 papers) — 13 · 22.8% - [• comment on significant figures - students may be required to identify and/or round up any incorrect figures in a table of results](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-significant-figures-students-may-be-required-to-identify-and-or-round-up/) (8 papers) — 8 · 14.0% - [• comment on the range of measurements taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-the-range-of-measurements-taken/) (6 papers) — 6 · 10.5% - [• identify and/or amend units that are incorrect](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/identify-and-or-amend-units-that-are-incorrect/) (6 papers) — 6 · 10.5% - [• identify and check a reading that is inconsistent with other readings, e.g. a point that is not on the line of a graph.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/identify-and-check-a-reading-that-is-inconsistent-with-other-readings-e-g-a-point/) (2 papers) — 2 · 3.5% ### Marks by subtopic marks - [• comment on how the experiment could have been improved, possibly by using additional apparatus (e.g. to reduce errors) examples may include using set squares to measure the diameter of a cylinder and using a marker for timing oscillations](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-how-the-experiment-could-have-been-improved-possibly-by-using-additional/) (14 papers) — 51 · 38.1% - [• comment on the number of readings taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-the-number-of-readings-taken/) (11 papers) — 31 · 23.1% - [• comment on significant figures - students may be required to identify and/or round up any incorrect figures in a table of results](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-significant-figures-students-may-be-required-to-identify-and-or-round-up/) (8 papers) — 19 · 14.2% - [• comment on the range of measurements taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-the-range-of-measurements-taken/) (6 papers) — 15 · 11.2% - [• identify and/or amend units that are incorrect](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/identify-and-or-amend-units-that-are-incorrect/) (6 papers) — 14 · 10.4% - [• identify and check a reading that is inconsistent with other readings, e.g. a point that is not on the line of a graph.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/identify-and-check-a-reading-that-is-inconsistent-with-other-readings-e-g-a-point/) (2 papers) — 4 · 3.0% ## 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 how the experiment could have been improved, possibly by using additional apparatus (e.g. to reduce errors) examples may include using set squares to measure the diameter of a cylinder and using a marker for timing oscillations](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-how-the-experiment-could-have-been-improved-possibly-by-using-additional/)** | 22 | 14 | 51 | 2021–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-how-the-experiment-could-have-been-improved-possibly-by-using-additional/) | | **[• comment on significant figures - students may be required to identify and/or round up any incorrect figures in a table of results](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-significant-figures-students-may-be-required-to-identify-and-or-round-up/)** | 8 | 8 | 19 | 2021–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-significant-figures-students-may-be-required-to-identify-and-or-round-up/) | | **[• comment on the number of readings taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-the-number-of-readings-taken/)** | 13 | 11 | 31 | 2021–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-the-number-of-readings-taken/) | | **[• comment on the range of measurements taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-the-range-of-measurements-taken/)** | 6 | 6 | 15 | 2022–2026 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-the-range-of-measurements-taken/) | | **[• identify and check a reading that is inconsistent with other readings, e.g. a point that is not on the line of a graph.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/identify-and-check-a-reading-that-is-inconsistent-with-other-readings-e-g-a-point/)** | 2 | 2 | 4 | 2025 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/identify-and-check-a-reading-that-is-inconsistent-with-other-readings-e-g-a-point/) | | **[• identify and/or amend units that are incorrect](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/identify-and-or-amend-units-that-are-incorrect/)** | 6 | 6 | 14 | 2021–2025 | [Open topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/identify-and-or-amend-units-that-are-incorrect/) | ## Browse every topic question - [• comment on how the experiment could have been improved, possibly by using additional apparatus (e.g. to reduce errors) examples may include using set squares to measure the diameter of a cylinder and using a marker for timing oscillations](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-how-the-experiment-could-have-been-improved-possibly-by-using-additional/) — 22 question items · 14 papers — 51 marks · 2021–2026 - [• comment on significant figures - students may be required to identify and/or round up any incorrect figures in a table of results](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-significant-figures-students-may-be-required-to-identify-and-or-round-up/) — 8 question items · 8 papers — 19 marks · 2021–2026 - [• comment on the number of readings taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-the-number-of-readings-taken/) — 13 question items · 11 papers — 31 marks · 2021–2026 - [• comment on the range of measurements taken](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/comment-on-the-range-of-measurements-taken/) — 6 question items · 6 papers — 15 marks · 2022–2026 - [• identify and check a reading that is inconsistent with other readings, e.g. a point that is not on the line of a graph.](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/identify-and-check-a-reading-that-is-inconsistent-with-other-readings-e-g-a-point/) — 2 question items · 2 papers — 4 marks · 2025 - [• identify and/or amend units that are incorrect](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/identify-and-or-amend-units-that-are-incorrect/) — 6 question items · 6 papers — 14 marks · 2021–2025 ## Other topics in WPH16 - [Analysis 256 question items](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/analysis/) - [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 Implementation and Measurements contain?** This page lists 6 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. --- Full page with native tables, bar charts and Practice Hub links: https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-6-wph16/implementation-and-measurements/