Physics is the science that explains how the universe works, from the tiniest quark to the vastness of space. For secondary school students, the Cambridge IGCSE Physics (0625) course is more than just a qualification—it's a gateway to analytical thinking, problem-solving, and a deeper understanding of the world around us. Whether you're aiming for A-Levels, the IB Diploma, or a career in engineering or medicine, this course builds the foundational knowledge you need. In this guide, we'll walk through everything you need to know about the Cambridge IGCSE Physics (0625) curriculum: the core topics, the difference between Core and Extended levels, the exam structure, and how to study effectively. By the end, you'll have a clear roadmap for tackling this fascinating subject with confidence.
This article follows the latest Cambridge IGCSE Physics (0625) syllabus for the 2026-2027 examinations, reflecting all the updates and changes that Cambridge Assessment International Education has implemented. If you're just starting your journey, or if you're looking for a comprehensive revision tool, you're in the right place. Let's dive in.
Course Overview: The Cambridge IGCSE Physics (0625) Curriculum
The Cambridge IGCSE Physics (0625) course is designed to give students a solid understanding of the fundamental principles of physics and their applications in the real world. It's a qualification that's recognized worldwide, making it an excellent choice for international schools and students who may move between countries. The course is structured to be accessible, yet challenging enough to prepare you for further study.
One of the key features of the Cambridge IGCSE Physics (0625) is its dual-tier assessment: you can take either the Core or the Extended paper. The Core curriculum covers the essential concepts, and you can achieve grades from C to G. The Extended curriculum goes deeper, covers more material, and allows you to achieve the highest grades, from A* to G. We'll explore the differences in detail later, but for now, understand that the Extended tier is generally preferred by students who want to pursue physics at a higher level.
The syllabus itself is divided into several key areas:
- Mechanics (Forces and Motion) – This is the study of how objects move, the forces that affect them, and the principles of energy work and power.
- Thermal Physics – This covers the behavior of matter in relation to heat, temperature, and the transfer of thermal energy.
- Waves – This includes the properties of light and sound, the electromagnetic spectrum, and how waves are used in technology.
- Electricity and Magnetism – This is the study of electric circuits, the properties of magnets, and the relationship between electricity and magnetism.
- Nuclear Physics – This explores the structure of the atom, radioactivity, and the uses and dangers of nuclear radiation.
- Space Physics (an optional addition in recent years) – This covers the solar system, stars, and the universe.
In the Cambridge IGCSE Physics (0625), you'll not only learn these principles but also how to use scientific instruments, how to analyze data, and how to evaluate the impact of physics on society and the environment. It's a holistic approach that makes the subject both practical and intellectually stimulating.
Core vs. Extended: What's the Difference?
Choosing between Core and Extended is one of the first major decisions you'll make. Here's a breakdown:
| Aspect | Core | Extended |
|---|---|---|
| Grade range | C to G | A* to G |
| Content | Covers the main topics at a straightforward level | Covers all Core topics plus additional, more complex material |
| Assessment | Two papers (multiple choice and written) | Two papers (multiple choice and written) |
| Suitability | For students who want a basic understanding of physics | For students who need a strong foundation for A-Levels or university |
| Question difficulty | Easier, more straightforward questions | Requires deeper understanding and problem-solving skills |
The Extended curriculum isn't just more work—it's a different kind of work. For example, in the Core paper, you might be asked to recall the formula for speed (speed = distance / time). In the Extended paper, you'd be expected to apply it to a more complex scenario, maybe involving graphs or multiple steps. The Extended paper also includes content that isn't in the Core syllabus, such as the concept of momentum, the motion of charged particles in a magnetic field, and the photoelectric effect.
It's important to note that your choice of tier affects your grade. If you take the Extended papers, you'll be able to achieve an A*, which is often required for competitive university courses. However, if you find physics challenging, the Core tier is still a valid qualification that demonstrates your understanding of fundamental concepts.
Most students aiming for careers in STEM fields choose the Extended tier. In fact, the Cambridge IGCSE Physics (0625) course at Asibiont is specifically designed to prepare you for the Extended papers, following the Cambridge guidelines rigorously, and giving you a strong edge.
Syllabus Breakdown: Mechanics, Electricity, Waves, and Nuclear Physics
Now, let's take a closer look at the four main areas that make up the heart of the Cambridge IGCSE Physics (0625) syllabus. These are the topics that appear most often in the exams and that form the basis of all future physics study.
Mechanics: Forces and Motion
Mechanics is arguably the most intuitive part of physics because it deals with things we can see and feel. In this section, you'll learn about:
- Speed, velocity, and acceleration – The difference between scalar and vector quantities, and how to calculate them.
- Motion graphs – Interpreting distance-time and speed-time graphs.
- Forces – Newton's laws, friction, and how forces affect motion.
- Momentum (Extended only) – The product of mass and velocity, and conservation of momentum.
- Energy transformations – Kinetic and potential energy, and the law of conservation of energy.
- Work and power – How work is done, and the relationship between work, force, and distance.
For example, imagine you're in a car that accelerates from a standstill to 60 km/h in 10 seconds. You can calculate the acceleration, the force exerted by the engine, and the distance traveled—all with the principles you learn in this section. This is not just abstract theory; it's the physics behind every vehicle on the road.
Electricity and Magnetism
Electricity is the lifeblood of modern society. In this section, you'll delve into:
- Circuit components – Resistors, batteries, switches, and how to draw circuit diagrams.
- Voltage, current, and resistance – Ohm's law and the relationships between these quantities.
- Series and parallel circuits – How they differ, and how to calculate total resistance.
- Electrical power and energy – The cost of electricity, and how to calculate it.
- Magnetic fields – The shape of magnetic fields around magnets and current-carrying wires.
- Electromagnetism – How electromagnets work, and their applications in motors and generators.
One classic example that brings this to life is the simple flashlight. With your knowledge of circuits, you can explain why the bulb lights up, how the switch controls the current, and why batteries eventually run out. The Extended syllabus also covers the electromagnetic induction that powers the national grid—a topic that connects physics to global energy issues.
Waves: Light and Sound
Waves are everywhere—we use them to communicate, to see, and to listen. Here's what you'll learn:
- Wave properties – Wavelength, frequency, amplitude, and speed.
- The wave equation –
v = fλand how to use it. - Transverse and longitudinal waves – The difference, with examples like light and sound.
- Reflection and refraction – How waves behave when they hit boundaries.
- The electromagnetic spectrum – From radio waves to gamma rays, and their uses.
- Sound waves – How we hear, the speed of sound, and echoes.
A great example is the use of ultrasound in medicine. When you get an ultrasound scan, a transducer emits high-frequency sound waves that reflect off tissues and bones, creating an image. The principles you learn in this section explain exactly how that works.
Nuclear Physics
This is perhaps the most fascinating and controversial area of physics. You'll explore:
- The structure of the atom – Protons, neutrons, and electrons.
- Isotopes – Atoms of the same element with different numbers of neutrons.
- Radioactive decay – Alpha, beta, and gamma radiation, and how they're detected.
- Half-life – The time it takes for half of a radioactive sample to decay.
- Uses of radioactivity – In medicine, archaeology, and industry.
- Nuclear fission and fusion – The processes that power nuclear reactors and the sun.
Consider the carbon dating technique used by archaeologists. By measuring the amount of carbon-14 in an ancient artifact, scientists can determine its age. That's pure Cambridge IGCSE Physics (0625) in action.
Key Skills You'll Develop
Beyond the specific content, studying Cambridge IGCSE Physics (0625) helps you develop a set of transferable skills that are invaluable in any career:
- Critical thinking – You'll learn to question evidence and evaluate claims.
- Problem-solving – You'll tackle unfamiliar problems by breaking them down into manageable steps.
- Mathematical literacy – You'll apply algebra, graphs, and simple calculus (in Extended) to real-world phenomena.
- Practical skills – You'll conduct experiments, use tools like multimeters and oscilloscopes, and interpret results.
- Scientific communication – You'll learn to present data and conclusions clearly.
These skills are exactly what universities and employers look for. Whether you become a doctor, an engineer, a data scientist, or an entrepreneur, the habits of mind you develop in this course will serve you well.
How the Learning Works: Assessment and Papers
The Cambridge IGCSE Physics (0625) assessment consists of two or three papers, depending on whether you take the Core or Extended option. Here's the breakdown for 2026:
| Paper | Type | Duration | Weighting | Questions |
|---|---|---|---|---|
| Paper 1 (Core) | Multiple Choice | 45 minutes | 30% | 40 questions |
| Paper 2 (Extended) | Multiple Choice | 45 minutes | 30% | 40 questions |
| Paper 3 (Core) | Theory | 1 hour 15 minutes | 50% | Short answer and structured data-based questions |
| Paper 4 (Extended) | Theory | 1 hour 15 minutes | 50% | Short answer and structured data-based questions |
| Paper 5 | Practical Test | 1 hour 15 minutes | 20% | Experiments and data analysis |
| Paper 6 | Alternative to Practical | 1 hour | 20% | Written questions about experimental methods |
Most international schools take Papers 2, 4, and 6 (Extended plus Alternative to Practical). Paper 6 is a written alternative to Paper 5, designed for schools where a full practical exam isn't feasible. It tests your understanding of experimental design, safety, and data analysis—without actually performing the experiments.
The inclusion of practical work is a hallmark of Cambridge IGCSE Physics (0625). It reinforces the theoretical content and teaches you how to handle real instruments. For example, you might be asked to plot a graph of voltage vs. current and determine the resistance of an unknown resistor from the gradient.
Strategies for Success and Common Pitfalls
To excel in the Cambridge IGCSE Physics (0625), you need more than just memorization. Here are some tried-and-true strategies, along with the mistakes we see most often.
Strategy 1: Master the Mark Scheme
Cambridge examiners use mark schemes that award points for specific key words and steps. Familiarize yourself with these by reviewing past papers. For instance, when explaining that an object is stationary, you must mention that the distance is not changing or that the speed is zero. Saying "it's not moving" is acceptable, but "it has no velocity" is better because it's more precise.
Strategy 2: Use the Right Units Always
Losing marks for missing units is the most common and avoidable error. Always include units for every numerical answer. If the unit is not given in the question, write it down. For example, if you calculate a force and get 50, don't just write "50"—write "50 N" or "50 newtons."
Strategy 3: Understand, Don't Just memorize
Physics is a conceptual subject. Try to explain every formula in your own words. For example, v = fλ makes sense when you realize that if waves move faster, they cover more ground in one period, so the wavelength must be longer for a fixed frequency. When you truly grasp the why, you'll be able to answer questions you've never seen before.
Strategy 4: Practice with a Timer
The exam is a time management game. Practice past papers under timed conditions. This helps you gauge how long to spend on each question and reduces panic on the big day.
Strategy 5: Don't Ignore the Command Words
Pay attention to action verbs in questions: state, explain, calculate, suggest, describe. They require different levels of detail. "State" means a concise answer, often one word or a short phrase. "Explain" requires a reason or justification. "Calculate" requires showing your method. Many students lose marks by treating all questions the same way.
Why Study Cambridge IGCSE Physics (0625) with Asibiont?
You might be wondering how this blog article connects to your learning journey. Asibiont is an online learning platform that offers a comprehensive Cambridge IGCSE Physics (0625) course, following the official Cambridge syllabus in its entirety. We've structured the course to be interactive, engaging, and effective, with:
- Video lessons that break down complex concepts into bite-sized, animated explanations.
- Interactive quizzes that give you instant feedback and help you track your progress.
- Downloadable revision notes that condense the entire syllabus into clear, concise bullet points.
- Practice exams modeled on the real Cambridge papers, complete with mark schemes.
- Online support from experienced physics tutors who can answer your questions and provide guidance.
Our approach is built on the latest research in cognitive science: we use spaced repetition, interleaving, and active recall to maximize retention. You don't just watch videos; you solve problems, get feedback, and try again. This is the most effective way to not only pass the exam but truly master the subject.
A Comparison: Cambridge IGCSE Physics vs. Other Curricula
It can be helpful to see how the Cambridge IGCSE Physics (0625) stacks up against other common international physics curricula, such as the IB MYP or the International GCSE (Pearson Edexcel).
| Feature | Cambridge IGCSE (0625) | IBMYP Science | Pearson Edexcel IGCSE |
|---|---|---|---|
| Syllabus | Focused on physics alone | Integrated science (physics taught as part of a broader program) | Similar to Cambridge |
| Tiering | Core and Extended | No tiering, but differentiated assessment | Higher and Foundation |
| Assessment | Two/three papers with practical alternative | Diverse: portfolios, exams, investigations | Two exams |
| International recognition | Widely recognized globally | Well-regarded, preparation for IBDP | Widely recognized |
| Focus | Depth of physics principles | Inquiry-based, conceptual understanding | Similar to Cambridge |
The Cambridge IGCSE (0625) is often preferred because it offers a clear, linear path from IGCSE to A-Level. The Extended tier, in particular, is designed to be a natural stepping stone to the Cambridge International AS & A-Level Physics. If you're planning to continue studying physics, geography, or engineering at university, this alignment is a big advantage.
10-Step Study Plan for Cambridge IGCSE Physics (0625)
To help you keep on track, here's a ten-step plan that you can adapt to your own schedule.
- Assess your starting point (Week 1): Take a diagnostic test to identify your weak areas. Our Asibiont course includes an initial assessment that pinpoints exactly which topics you need to focus on.
- Build a study routine (Ongoing): Set aside a fixed time each day for physics. Consistency beats cramming every time.
- Start with Mechanics (Weeks 2-4): Because many other topics build on the concepts of forces and energy, it's best to start here.
- Move to Electricity (Weeks 5-7): This is where many students struggle, but our interactive circuit simulations make it concrete.
- Tackle Waves (Weeks 8-9): Use diagrams and videos to visualize wave behavior.
- Nuclear Physics (Week 10): This is relatively self-contained, so it's perfect for when you need a break from calculations.
- Practice math skills (Ongoing): Set aside 30 minutes each week to work through numerical problems, especially on equations.
- Do past papers (Weeks 11-15): Start with one paper per week, then increase to two as you get closer to the exam.
- Analyze your mistakes (After every paper): Keep a "mistake log" and review it before each practice test.
- Revise, revise, revise (Last month): Use condensed notes and flashcards to keep everything fresh.
Exam Day: Last-Minute Tips
The night before the exam, don't crash-revise. Instead, get a good night's sleep. On the morning of the exam, eat a balanced breakfast, and review your formula sheet (if allowed). During the exam, read each question twice, underline the command word, and check your units. If you get stuck, move on and return later. All these small habits can make a huge difference to your score.
Common Misconceptions About Cambridge IGCSE Physics
There are several myths about this course that can lead students astray. Let's set the record straight:
- "You need to be a math genius to pass." Not true. The math used is basic algebra, and you'll get plenty of practice. The emphasis is on applying concepts, not on advanced mathematics.
- "It's all about memorizing formulas." Formulas are important, but you also need to know when and how to apply them. The exam board often gives you formulas in the paper, so it's more about understanding than memory.
- "If you've done GCSE physics, you don't need to study further." Wrong. The IGCSE syllabus includes topics that are not in the UK GCSE, such as the astrophysics and the practical alternative paper. Always review the official 2026 syllabus.
- "Multiple choice papers are easy." The choices are designed to catch out students who haven't read the question carefully. Don't underestimate them.
Recommendations for Additional Resources
To complement your study, here are some resources that we recommend at Asibiont:
- Cambridge Official Past Papers – The most reliable source of exam questions. You can find them in our resource library.
- The Cambridge IGCSE Physics Coursebook by David Sang – A great companion that explains everything clearly.
- Khan Academy Physics – Excellent for visual explanations, though not specific to IGCSE.
- PhET Simulations (University of Colorado) – Free interactive simulations that make abstract concepts concrete.
- YouTube channels like Freesciencelessons and Cognito offer specific IGCSE content that aligns well with the syllabus.
But remember, resources alone aren't enough. You need a structured approach, which is exactly what Asibiont provides. Our course integrates these resources and much more into a cohesive, guided learning journey.
The Future: Beyond IGCSE
After you've conquered Cambridge IGCSE Physics (0625), you'll be well-prepared for advanced study. The natural progression is to Cambridge International AS & A-Level Physics, where you'll dive deeper into quantum mechanics, wave-particle duality, and electromagnetic fields. Alternatively, you might choose the International Baccalaureate Diploma, where physics can be taken as a Standard or Higher Level subject.
Whichever path you choose, the problem-solving skills and scientific mindset you develop in this IGCSE will serve you for life. In an era where technological literacy is increasingly important, understanding the basics of physics is a form of power.
Ready to Master Physics?
Now that you've read this comprehensive guide, you know exactly what to expect from the Cambridge IGCSE Physics (0625) course. The syllabus is vast, but with the right approach, it's entirely possible to achieve an A* and develop a genuine love for the subject. The key is to stay curious, practice consistently, and seek help when you need it.
If you're looking for structured, expert guidance, the Asibiont online course is here to support you every step of the way. Our platform is designed by experienced educators who know exactly what examiners look for. You'll get access to video tutorials, practice problems, mock exams, and a vibrant community of learners. Don't navigate this journey alone—join Asibiont today and turn your physics ambitions into reality.
Visit asibiont.com/blog for more guides and tips, and check out the full Cambridge IGCSE Physics (0625) course at asibiont.com/courses/igcse-physics. Let's make physics your favorite subject.
Want to master this topic? Check out the full course on ASI Biont — interactive AI-powered learning.
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