Understanding the 2025 NSW HSC Physics Syllabus: Key Changes and Student Strategies

New South Wales will begin implementing the 2025 Physics syllabus from the start of next year. At Zhang’s HSC Coaching, we will introduce it one term earlier, starting in Term 4 this year. Chemistry will follow one year later than Physics.

Compared with the syllabus changes in 2000 and 2017, the changes this time are much smaller. Below, I compare the current and new syllabi in terms of course structure, content, and assessment methods, and finally discuss how students should respond. This discussion focuses on Physics; Chemistry will be covered separately.

1. Structural Changes

The first change is in terminology. The 2017 syllabus uses Modules (M), whereas the 2025 syllabus replaces them with Focus Areas (FA). I will refer to them as M and FA.

From the table above, you can see that:

Total = 120 + 120 = 240 hours (unchanged)

Year 11 has been simplified from four modules to three focus areas, reflecting the fact that Year 11 only has three terms. However, the total indicative hours remain unchanged at 120 hours for Year 11 and 240 hours overall. (Note: an “indicative hour” is approximately one hour, depending on lesson duration.)

2. Key Content Changes

(1) Mechanics Restructured

Kinematics and dynamics have been merged into Fundamentals of Mechanics. The content remains largely the same, but concepts are presented more coherently. There is greater emphasis on key skills such as:

• Free-body diagrams
• Vector calculations
• Practical work, experimental methods, and data analysis

(2) Removed Content

Thermodynamics (from M3) has been completely removed

Optical imaging content has been removed

Kirchhoff’s circuit laws (from M4) have been removed

(3) Year 12 (HSC) Changes

Focus Areas FA4, FA5, and FA7 remain largely similar, but:

Memorisation-heavy scientific history has been reduced, including:

• Historical measurements of the speed of light
• Newton’s corpuscular theory of light
• Maxwell’s electromagnetic wave theory has been simplified
• Hertz’s experimental confirmation of electromagnetic waves (from the 2000 syllabus) has been reintroduced

(4) Stronger Emphasis on Quantum Physics

The new syllabus significantly strengthens the quantum model of light, including:

• Energy distribution in matter versus temperature
• Quantum energy relation: E=hfE = hfE=hf
• Systematic coverage of quantum theory

There is also more detailed treatment of:

• Blackbody radiation curves
• The ultraviolet catastrophe explained using quantum theory

(5) Major Changes to the Final Module (M8 → FA7)

The biggest change in Year 12 is:
Title change:
From “From the Universe to the Atom” → “Matter, Energy and the Cosmos”

Removed content includes:

• Big Bang theory
• Expansion of the universe
• Millikan’s oil-drop experiment
• Much of the Standard Model of matter (significantly reduced)

New or strengthened content:

• Nuclear shell model (Goeppert Mayer)
• Quantum mechanical model (Schrödinger)
• Stronger emphasis on astronomy

Overall, while the total content change is moderate, the structure has been reorganised for greater clarity and logical flow.

3. Skills Emphasis

The new syllabus places greater importance on:

• Data analysis
• Conceptual understanding
• Deriving theories from scientific evidence
• Applying knowledge to unfamiliar situations

4. Assessment Changes

The new syllabus emphasises:

• Investigation of real scientific contexts
• Data analysis and evaluation
• Assessing accuracy, reliability, validity, and precision

This represents a return to the 2000 syllabus approach, but with a stronger focus on experimental work and data.

A major change is that the Depth Study has been removed. This is understandable given the impact of AI. Schools are likely to shift toward:

• More in-class assessments
• Experimental or research tasks completed under supervised, paper-based conditions

5. Overall Evaluation

Among the four syllabi I have experienced, I consider this the best because:

• Concepts are more rigorous
• The logical structure is stronger
• It reflects both the historical development and modern state of physics

It is also the most challenging.

6. How Students Should Respond

Students should:

• Focus on deep conceptual understanding rather than rote memorisation
• Pay close attention to graphs and data, and extract physical meaning from them

In problem-solving, emphasise:

• Explaining concepts
• Applying knowledge

In Year 12, develop the ability to solve questions that integrate multiple focus areas
In practical work, learn how to:
Analyse errors
Evaluate results in terms of validity, reliability, accuracy, and precision
Should you have any questions, please feel free to leave them in the comments section.

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