# 9702 P4 Internal energy Topic Questions > CIE IAL 9702 P4: every Internal energy topic question from 11 papers (2025–2026), grouped by syllabus point. 21 questions, 47 marks, with direct links into… - Canonical HTML: https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/internal-energy/ - Markdown mirror: https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/internal-energy/index.md --- CIE IAL · Physics · 9702 P4 · A Level Every 9702 P4 Internal energy topic question from the 2025–2027 syllabus, drawn from 11 papers (2025–2026) 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. - 9702 P4 - 2 subtopics - 21 topic questions - 11 papers - 47 tagged marks - [Back to Internal energy](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/internal-energy/) - [All paper codes](https://www.examsci.com/topics/) Core finding **1 understand that internal energy is determined by the state of the… is the most frequently assessed subtopic in Internal energy, with 20 topic questions and 44 marks across 11 papers.** 2 relate a rise in temperature of an object to an increase… follows with 2 topic questions and 5 marks. The topic contains 2 subtopics, 21 topic questions and 47 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 - [1 understand that internal energy is determined by the state of the system and that it can be expressed as the sum of a random distribution of kinetic and potential energies associated with the molecules of a system](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/internal-energy/1-understand-that-internal-energy-is-determined-by-the-state-of-the-system-and-that/) (11 papers) — 20 · 90.9% - [2 relate a rise in temperature of an object to an increase in its internal energy](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/internal-energy/2-relate-a-rise-in-temperature-of-an-object-to-an-increase-in-its-internal-energy/) (2 papers) — 2 · 9.1% ### Marks by subtopic marks - [1 understand that internal energy is determined by the state of the system and that it can be expressed as the sum of a random distribution of kinetic and potential energies associated with the molecules of a system](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/internal-energy/1-understand-that-internal-energy-is-determined-by-the-state-of-the-system-and-that/) (11 papers) — 44 · 89.8% - [2 relate a rise in temperature of an object to an increase in its internal energy](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/internal-energy/2-relate-a-rise-in-temperature-of-an-object-to-an-increase-in-its-internal-energy/) (2 papers) — 5 · 10.2% ## 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 | | | --- | --- | --- | --- | --- | --- | | **[1 understand that internal energy is determined by the state of the system and that it can be expressed as the sum of a random distribution of kinetic and potential energies associated with the molecules of a system](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/internal-energy/1-understand-that-internal-energy-is-determined-by-the-state-of-the-system-and-that/)** | 20 | 11 | 44 | 2025–2026 | [Open topic questions](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/internal-energy/1-understand-that-internal-energy-is-determined-by-the-state-of-the-system-and-that/) | | **[2 relate a rise in temperature of an object to an increase in its internal energy](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/internal-energy/2-relate-a-rise-in-temperature-of-an-object-to-an-increase-in-its-internal-energy/)** | 2 | 2 | 5 | 2025–2026 | [Open topic questions](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/internal-energy/2-relate-a-rise-in-temperature-of-an-object-to-an-increase-in-its-internal-energy/) | ## Browse every topic question - [1 understand that internal energy is determined by the state of the system and that it can be expressed as the sum of a random distribution of kinetic and potential energies associated with the molecules of a system](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/internal-energy/1-understand-that-internal-energy-is-determined-by-the-state-of-the-system-and-that/) — 20 question items · 11 papers — 44 marks · 2025–2026 - [2 relate a rise in temperature of an object to an increase in its internal energy](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/internal-energy/2-relate-a-rise-in-temperature-of-an-object-to-an-increase-in-its-internal-energy/) — 2 question items · 2 papers — 5 marks · 2025–2026 ## Other topics in 9702 P4 - [Capacitors and capacitance 17 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/capacitors-and-capacitance/) - [Centripetal acceleration 25 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/centripetal-acceleration/) - [Characteristics of alternating currents 21 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/characteristics-of-alternating-currents/) - [Concept of a magnetic field 3 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/concept-of-a-magnetic-field/) - [Damped and forced oscillations, resonance 7 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/damped-and-forced-oscillations-resonance/) - [Discharging a capacitor 16 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/discharging-a-capacitor/) - [Electric field of a point charge 8 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/electric-field-of-a-point-charge/) - [Electric fields and field lines 7 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/electric-fields-and-field-lines/) - [Electric force between point charges 12 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/electric-force-between-point-charges/) - [Electric potential 26 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/electric-potential/) ## Topic question rules and edge cases **How many subtopics does Internal energy contain?** This page lists 2 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/cie-ial/physics/9702-paper-4/internal-energy/