Searchers often ask how many questions are on the HKDSE Physics exam and what score counts as a pass, expecting an answer like a driving test or a professional licensing exam. The real answer is that neither of those exists in the form most people expect, and the actual structure is a Compulsory Part plus an Elective Part, graded on a Level scale.
How many questions are on the HKDSE Physics exam?
The exam is not built around a fixed count of questions the way a multiple-choice licensing test is. HKEAA assesses Physics through a Compulsory Part, sat by every candidate, and an Elective Part, where a school selects two of four elective units for its students. Questions mix multiple-choice items with structured and calculation questions marked on a points scale, so the total number of discrete “questions” is not a single published figure the way total marks or paper structure are.
Is there a pass mark for HKDSE Physics?
No, and this is the detail most searches get wrong. HKEAA does not publish a fixed pass mark for Physics or any other DSE subject. Results are reported on a Level 1 to 5 scale, from 1 up to 5, 5*, and 5** at the top, using standards-referenced grading: examiners set the boundary for each level after that year’s scripts have been marked, based on the quality of work at each level, not a percentage agreed in advance. There is no number to memorise the way there is for a fixed pass/fail licensing exam.
What is the Compulsory Part?
The Compulsory Part covers five topics that every candidate studies, moving from heat and everyday motion through waves and circuits to the nucleus:
- Heat and Gases: temperature, heat and internal energy, the three transfer processes, changes of state, and the behaviour of gases.
- Force and Motion: position and movement, Newton’s laws, projectiles, work, energy and power, momentum, circular motion and gravitation.
- Wave Motion: the nature and properties of waves, light and its behaviour, and sound.
- Electricity and Magnetism: electrostatics, circuits and domestic electricity, and electromagnetism.
- Radioactivity and Nuclear Energy: radiation and radioactivity, the atomic model, and nuclear energy.
What is the Elective Part?
The Elective Part offers four units, and a school teaches two of them, so the pair a candidate actually sits depends on their school’s arrangement rather than a fixed national list:
- Astronomy and Space Science: the universe at different scales, the history of astronomy, orbital motion under gravity, and stars.
- Atomic World: Rutherford’s model, the photoelectric effect, Bohr’s model of hydrogen, wave-particle duality, and the nano scale.
- Energy and Use of Energy: electricity at home, energy efficiency in buildings and transport, and renewable and non-renewable sources.
- Medical Physics: how the eye and the ear work, and medical imaging with non-ionizing and ionizing radiation.
Because a student cannot know in advance which two electives their school will teach, a revision resource that only covers one or two units leaves a gap. Covering all four means the material lines up with whichever pair a given school has chosen.
How is HKDSE Physics graded if there is no pass mark?
Through the same standards-referenced system used across all DSE subjects. Rather than fixing a score threshold before the exam is sat, examiners review the marked scripts each year and set the mark ranges for Level 1 through Level 5** based on the demonstrated quality of work at each level. That is why the level boundaries can shift slightly from year to year, and why there is no single “pass mark” number a study guide can responsibly quote.
How can I revise for HKDSE Physics without a fixed target to aim for?
Since there is no official pass mark to drill toward, the most useful thing a revision tool can do is cover the full breadth of both the Compulsory Part and all four Elective units, so nothing is missed regardless of which electives a school teaches. The RiverMap Learning DSE Physics app has 580 original practice questions and 326 flashcards across all nine topics, plus a one-page revision note for each topic, in English, Traditional Chinese, and Simplified Chinese with one-tap switching. Questions mix concept-based items, such as definitions, proportional relationships, and unit recognition, with calculation questions whose explanations write out the formula, substitution, result, and units step by step. Rather than simulate a pass/fail mock exam, it tracks topic-by-topic mastery so a student can see exactly which of the nine topics still needs work before the real exam.
Every question is original and written to align with the publicly available HKDSE Physics Curriculum and Assessment Guide (Secondary 4-6), never copied from a past paper, marking scheme, or textbook. The full curriculum guide is published by the Education Bureau at edb.gov.hk. This app is an independent revision aid, not affiliated with or endorsed by the HKEAA, the Education Bureau, or the Curriculum Development Council.