A-Level · 26 September 2026 · 6 min read
What is A-Level Physics? Topics, skills and a realistic course preview
Before choosing A-Level Physics, it helps to see the work behind the subject name. Enjoying space documentaries is a good starting interest, but an ordinary study session is more likely to involve drawing a force diagram, interpreting a graph, or explaining why an experiment does not quite match an ideal model.
This guide is for students and parents comparing options after GCSE or IGCSE. It gives a practical preview rather than a promise that the course will be easy or difficult for everyone. Our A-Level teaching and revision pathway focuses on Edexcel International AS and A-Level Physics; the broader study advice can also help students taking other qualifications.
What do you actually study?
Physics links observable changes to a small set of principles. In mechanics, you explain motion using forces, energy and momentum. In electricity, you connect charge flow with potential difference and resistance. Waves connect oscillations with interference and the behaviour of light. Later work develops ideas such as fields, thermal behaviour and atomic or nuclear processes. Your specification determines the exact content and its depth.
Think of these as connected ways of explaining the world, not isolated chapters. Energy can connect a falling object, a circuit and a photon. A graph can reveal a change in velocity, a material property or radioactive decay. Learning to recognise those connections is more useful than collecting separate formula lists for every topic.
Try a small example of the thinking involved
Imagine a 0.50 kg trolley moving along a horizontal track. A 2.0 N horizontal driving force acts forwards and resistance is 0.50 N backwards. What is its acceleration? Choose forwards as positive, combine the horizontal forces to get 1.5 N, then use a = F/m to obtain 3.0 m s⁻². The force in Newton's second law is the resultant, not whichever force appears first in the question.
Now change the question: what happens if the driving force equals the resistance? The acceleration is zero, but the trolley need not stop; it can continue at constant velocity. This second part tests whether you understand the model behind the calculation. A useful answer combines a diagram, a mathematical relationship and a sentence explaining the physical consequence.
The biggest change from IGCSE is choosing your own method
At first, a familiar topic can feel unexpectedly demanding because a question gives you fewer clues about which steps to take. You may need to combine a graph reading with an equation, state an assumption, and judge whether the result is reasonable. Remembering the definition is still valuable, but it is only the beginning of the answer.
When studying, hide the solution and write your first decision before calculating. Name the system, identify the quantity being asked for, and choose a principle. If you cannot start, diagnose that decision instead of copying the entire worked example. The existing IGCSE-to-A-Level readiness guide gives a more detailed bridge once you have decided to take the subject.
Maths, explanations and experiments all matter
Mathematical fluency makes room for the physics. If rearranging an equation takes all your attention, it becomes harder to notice a wrong assumption or unit. Practise algebra, powers of ten, trigonometry and graph interpretation in physical contexts. A calculator can evaluate an expression, but it cannot decide whether the expression describes the situation.
Written explanations also need practice. Compare 'the resistance changes' with an explanation that identifies the changed condition and connects it to charge flow. In practical work, ask what is measured, what is controlled and how uncertainty affects the conclusion. Recording a neat table is useful only if the measurements can answer the intended question.
Check the qualification before counting the papers
There is no single assessment pattern called 'A-Level Physics'. Pearson Edexcel International A-Level is modular; UK Edexcel A-Level is linear and has a separately reported practical endorsement. Cambridge International Physics 9702 includes a timetabled practical examination. Similar subject names do not make their paper numbers or entry arrangements interchangeable.
Ask your school for the awarding body, full qualification name, code and intended examination year. Use those details on every resource folder. If a video or notes page explains a shared concept well, it may still help, but compare its scope with your own specification before treating it as your complete revision course.
Use a short trial to decide whether the course fits
Try three separate tasks: one unfamiliar calculation, one explanation in words and one graph interpretation. Spend time checking your mistakes rather than judging yourself from the first score. Ask whether you are willing to keep working when the first approach fails and whether explaining the correction feels satisfying. That response is more informative than deciding from one easy lesson or one frightening paper.
Before confirming your subject choices, check your school's entry criteria and the exact requirements of any university courses you are considering. Then plan regular independent practice alongside lessons. If you choose Edexcel IAL, use our free notes and revision system to establish a starting routine; bring one attempted question and a specific difficulty when asking about course support.
Questions, explained
Choose a question for a direct answer, then explore the explanation and supporting resources. Each answer has its own link to save or share.
Is A-Level Physics mostly memorisation or problem solving?
You need both knowledge and application. Definitions, relationships and conditions must be available from memory, but questions also ask you to choose a model, combine information and explain an unfamiliar situation. A useful study check is whether you can solve a changed version of a question after recalling the relevant idea, rather than only repeating its original answer.
Do you do experiments in A-Level Physics?
Yes, practical skills are part of studying Physics. How those skills are assessed depends on the qualification: a written practical-skills paper, a practical examination and a separately reported endorsement are different arrangements. Confirm your course's requirements with the specification and centre rather than assuming that an online course or video replaces hands-on preparation.
How do I know whether A-Level Physics is right for me?
Try a calculation, a written explanation and a graph task, then work through the corrections. Consider whether you enjoy connecting ideas and can commit to regular practice when a question is unfamiliar. Combine that trial with your school's entry guidance and the requirements of your intended next step. One difficult question does not decide your suitability.
What should I read first before starting A-Level Physics?
Start with your qualification's specification and a short readiness check in units, algebra, forces and graphs. Then study one topic actively: explain the idea, attempt a question without the solution, and check your reasoning. Reading a whole textbook before term begins is less useful than identifying the prerequisite skills you need to strengthen.