Edexcel IAL · Physics · WPH15 · Astrophysics and Cosmology
Topic Questions: 166 understand how astronomical distances can be determined using measurements of intensity received from standard candles (objects of known luminosity) — WPH15 Astrophysics and Cosmology
19 WPH15 Astrophysics and Cosmology topic questions are tagged to this syllabus point across 14 papers (2021–2025). 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 Astrophysics and Cosmology syllabus point appears in 14 WPH15 papers across 2021–2025, contributing 19 topic questions and 47 marks. The most recent appearance is WPH15/01 October 2025. That equals 6.3% of the 303 topic questions and 6.5% of the 725 marks tagged to Astrophysics and Cosmology. 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 |
|---|---|---|---|---|---|---|
| WPH15/01October 2025 · Edexcel IAL | Q21 Astrophysics - Distance Measurements - Edexcel IAL Physics Oct 2025 Q21 |
FRQ | 2 of 5 parts ((b)(ii), (c)(ii)) | 4 of 13 on the paper |
Easy | Go to Practice Hub |
| WPH15/02October 2025 · Edexcel IAL | Q21 Stellar Distance and Orbital Calculations - Edexcel IAL Physics Oct 2025 Q21 |
FRQ | 2 of 5 parts ((b)(ii), (c)(ii)) | 4 of 13 on the paper |
Easy | Go to Practice Hub |
| WPH15/01June 2025 · Edexcel IAL | Q14 Distance Measurement Methods - Edexcel IAL Physics June 2025 Q14 |
FRQ | 2 of 3 parts ((b)(i), (b)(ii)) | 4 of 6 on the paper |
Easy | Go to Practice Hub |
| WPH15/01January 2025 · Edexcel IAL | Q16 Cepheid Variables and Standard Candles - Edexcel IAL Physics Jan 2025 Q16 |
FRQ | 2 of 3 parts ((a), (b)(i)) | 5 of 7 on the paper |
Easy | Go to Practice Hub |
| WPH15/01January 2024 · Edexcel IAL | Q18 Astrophysics and Cosmology - Edexcel IAL Physics Jan 2024 Q18 |
FRQ | 1 of 3 parts ((b)) | 4 of 11 on the paper |
Medium | Go to Practice Hub |
| WPH15/01June 2023 · Edexcel IAL | Q20 Edexcel IAL Physics Unit 5 June 2023 Q20 |
FRQ | 1 of 3 parts ((c)) | 4 of 9 on the paper |
Medium | Go to Practice Hub |
| WPH15/01January 2023 · Edexcel IAL | Q18 Stellar Parallax and Standard Candles - Edexcel IAL Physics Jan 2023 Q18 |
FRQ | 2 of 4 parts ((b)(i), (b)(ii)) | 4 of 9 on the paper |
Medium | Go to Practice Hub |
| WPH15/01October 2022 · Edexcel IAL | Q13 Standard Candles and Distance - Edexcel IAL Physics Oct 2022 Q13 |
FRQ | 1 part | 6 | Medium | Go to Practice Hub |
| WPH15/01June 2022 · Edexcel IAL | Q11 Distance of Galaxy M81 Using Standard Candle - Edexcel IAL Physics Jun 2022 Q11 |
FRQ | 1 part | 3 | Medium | Go to Practice Hub |
| WPH15/01January 2022 · Edexcel IAL | Q19 Stellar Parallax and H-R Diagrams - Edexcel IAL Physics Jan 2022 Q19 |
FRQ | 1 of 5 parts ((b)) | 3 of 18 on the paper |
Medium | Go to Practice Hub |
| WPH15/02January 2022 · Edexcel IAL | Q7 Standard Candle Method Parameters - Edexcel IAL Physics Jan 2022 Q7 |
MCQ | MCQ · 1 part | 1 | Easy | Go to Practice Hub |
| WPH15/01October 2021 · Edexcel IAL | Q1 Standard Candles - Edexcel IAL Physics Oct 2021 Unit 5 Q1 |
MCQ | MCQ · 1 part | 1 | Easy | Go to Practice Hub |
| WPH15/01June 2021 · Edexcel IAL | Q12 Fast Radio Bursts as Standard Candles - Edexcel IAL Physics Jun 2021 Q12 |
FRQ | 1 of 3 parts ((a)) | 1 of 7 on the paper |
Easy | Go to Practice Hub |
| WPH15/01January 2021 · Edexcel IAL | Q20 Astrophysics - H-R Diagram and Doppler shift |
FRQ | 1 of 4 parts ((b)(ii)) | 3 of 14 on the paper |
Medium | Go to Practice Hub |
Related topic questions in Astrophysics and Cosmology
Topic question rules and edge cases
- How many topic questions cover this syllabus point?
- 14 question stems cover this subtopic across 14 papers, but only 19 tagged parts and 47 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 2021–2025. 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.