PHYSICS-A-H556 · Cambridge OCR A Level
PHYSICS-A-H556/31
Unified Physics
Physics A - H556 · 2023 · Variant 1
Relative difficulty
Analysis source: OCR
Analysis aligned to the official syllabus and assessment design.
3.5 / 5
270
360 min
Measurements and uncertainties
Cohort performance
Session statistics from official examination reports
Total marks
270
Duration
360 min
Session difficulty
3.5 / 5
Key examiner messages
Top priorities from the principal examiner before you revise
The 2023 OCR Physics A (H556) examination was a challenging and comprehensive series, earning a solid 4 out of 5 stars for difficulty.
Across all three papers—Modelling, Exploring, and Unified Physics—students were tested on their mathematical precision, graphical analysis, and conceptual explanation skills.
The series placed a substantial emphasis on the practical skills module, with Measurements and Uncertainties alone accounting for an extraordinary 40 marks.
This highlight reinforces OCR's commitment to ensuring that students can not only perform calculations but also understand the nuances of experimental error, absolute and percentage uncertainties, and graphical gradients.
Question difficulty map
How candidates performed on each question in this series
No data available in official reports
Assessment objectives
Skill and AO weighting from official examiner commentary
Skill weighting
Shows the skill mix this paper tested most heavily.
Mathematical and
Weight: 6100%Experimental
Weight: 583%Conceptual Explanation
Weight: 467%Graphical Interpretation
Weight: 233%
Method marks watchlist
Where working, steps, or method marks were commonly lost
No data available in official reports
Recurring mistakes across years
Themes examiners flag in multiple recent sessions for this subject
No data available in official reports
Question choice intelligence
Mean scores and popularity for optional questions (HKDSE electives)
No data available in official reports
Level exemplars
What candidate scripts at each grade level looked like
No data available in official reports
Grade & admission context
How marks relate to grade thresholds and entry standards
Report type
Examiner report — national grade boundaries and question-level commentary
Level A*
Approx. 78% of maximum mark
Level A
Approx. 67% of maximum mark
Level B
Approx. 56% of maximum mark
Level C
Approx. 44% of maximum mark
Level D
Approx. 33% of maximum mark
Level E
Approx. 22% of maximum mark
Deep insights
What top candidates did
Techniques and approaches examiners rewarded in this series
No data available in official reports
Command word playbook
How to match each command word to the expected response style
Show formula, substitution, and unit; method marks need visible working.
Give reasons and link mechanism to outcome; each point needs a because/so chain.
Match the expected response style for “Show” questions.
State features in sequence or list observable properties — do not explain causes unless asked.
Match the expected response style for “Determine” questions.
Apply knowledge to an unfamiliar context; concise, practical points score best.
Match the expected response style for “Draw” questions.
Match the expected response style for “State” questions.
Time traps
Sections where candidates spent disproportionate time relative to marks
No data available in official reports
Syllabus traceability
Topics linked to questions and mark weighting in this session
Measurements and uncertainties
40 marks this session
Nuclear fission and fusion
16 marks this session
Stars
12 marks this session
Radioactivity
11 marks this session
Wave–particle duality
11 marks this session
MCQ trap analytics
Commonly chosen wrong options from examiner commentary
No data available in official reports
Topic heatmap across years
Mark concentration by topic and exam year for this subject
Mark intensity
Measurements and uncertainties
Radioactivity
Simple harmonic oscillations
Superposition
Electromagnetism
Nuclear fission and fusion
Ideal gases
Uniform electric field
Difficulty trend
How session difficulty has shifted across recent years
Paper comparison
Marks and duration breakdown across papers in this session
H556/01 Modelling physics: H556/02 Exploring physics: H556/03 Unified physics:
Marks you can still earn
Where valid approaches outside the mark scheme may still gain credit
No data available in official reports
Practise what examiners flagged
Target weak topics from this report inside the Revui app
Measurements and uncertainties
40 marks this session
Practise in RevuiNuclear fission and fusion
16 marks this session
Practise in RevuiStars
12 marks this session
Practise in RevuiRadioactivity
11 marks this session
Practise in RevuiWave–particle duality
11 marks this session
Practise in RevuiSelf-diagnostic checklist
Key actions before you sit this paper — copy and tick off as you revise
- 1Message
The 2023 OCR Physics A (H556) examination was a challenging and comprehensive series, earning a solid 4 out of 5 stars for difficulty.
- 2Message
Across all three papers—Modelling, Exploring, and Unified Physics—students were tested on their mathematical precision, graphical analysis, and conceptual explanation skills.
- 3Message
The series placed a substantial emphasis on the practical skills module, with Measurements and Uncertainties alone accounting for an extraordinary 40 marks.
- 4Message
This highlight reinforces OCR's commitment to ensuring that students can not only perform calculations but also understand the nuances of experimental error, absolute and percentage uncertainties, and graphical gradients.
Teacher briefing pack
One-page session summary for tutors and classroom review
2023 2023
Physics A - H556
The 2023 OCR Physics A (H556) examination was a challenging and comprehensive series, earning a solid 4 out of 5 stars for difficulty. Across all three papers—Modelling, Exploring, and Unified Physics—students were tested on their mathematical precision, graphical analysis, and c
The 2023 OCR Physics A (H556) examination was a challenging and comprehensive series, earning a solid 4 out of 5 stars for difficulty.
Across all three papers—Modelling, Exploring, and Unified Physics—students were tested on their mathematical precision, graphical analysis, and conceptual explanation skills.
The series placed a substantial emphasis on the practical skills module, with Measurements and Uncertainties alone accounting for an extraordinary 40 marks.
- Total marks
- 270
- Duration
- 360 min
- Session difficulty
- 3.5 / 5
Session analysis
The 2023 OCR Physics A (H556) examination was a challenging and comprehensive series, earning a solid 4 out of 5 stars for difficulty. Across all three papers—Modelling, Exploring, and Unified Physics—students were tested on their mathematical precision, graphical analysis, and conceptual explanation skills. The series placed a substantial emphasis on the practical skills module, with Measurements and Uncertainties alone accounting for an extraordinary 40 marks. This highlight reinforces OCR's commitment to ensuring that students can not only perform calculations but also understand the nuances of experimental error, absolute and percentage uncertainties, and graphical gradients.
Updated Jun 14, 2026
Paper breakdown
H556/01 Modelling physics: H556/02 Exploring physics: H556/03 Unified physics:
Top chapters
Exam structure insights
Marks by chapter
See where the marks were concentrated so revision time goes to the highest-value topics.
Mark accessibility
Estimate which marks were basic, mid-level, or high-difficulty.
76% within easy or medium reach
Command word frequency
Spot common command words so answers match the expected response style.
Question type mix
Compare the mark share of each paper section and question type.
structured-calculation
204·74·76%
extended-writing-lor
36·6·13%
multiple-choice
30·30·11%
Study ROI
Bigger bubbles recur more often; higher bubbles carry more marks, helping you rank revision priorities.
Next-year prediction
Topics worth watching next year, with the reason shown directly below each bar.
Uniform Electric Fields and Coulomb's Law
90%90%
Magnetic Fields and Electromagnetism
85%85%
Simple Harmonic Motion Mechanics
75%75%
A Detailed Analysis of the 2023 OCR Physics A H556 Series
The 2023 OCR Physics A (H556) examination was a challenging and comprehensive series, earning a solid 4 out of 5 stars for difficulty. Across all three papers—Modelling, Exploring, and Unified Physics—students were tested on their mathematical precision, graphical analysis, and conceptual explanation skills. The series placed a substantial emphasis on the practical skills module, with Measurements and Uncertainties alone accounting for an extraordinary 40 marks. This highlight reinforces OCR's commitment to ensuring that students can not only perform calculations but also understand the nuances of experimental error, absolute and percentage uncertainties, and graphical gradients.
Exam tips
Paper format
- Duration
- 1h 30min
- Total marks
- 70
- Weighting
- 26%
- Question types
- Short Answer / Calculation, Level of Response (LoR)
Analysis is paraphrased for study purposes. Always verify against the official examiner report and mark scheme.