Matric Physical Sciences Study Guide 2026 | Physics & Chemistry
Revise Grade 12 Physical Sciences for the 2026 NSC exams with Physics and Chemistry topic checklists, formula reminders, a study plan and exam techniques.
Start with the topic you find hardest
Physical Sciences combines Physics and Chemistry. Choose one weak topic, revise the core concept, complete exam-style questions, and correct every mistake before moving on.
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How to use this study guide
- Use your teacher’s current topic list and the official DBE examination guidance as the source of truth.
- Mark each topic as confident, partly understood or needs practice.
- Revise one topic, then solve questions without looking at the worked example.
- Mark your answers against the memorandum and write down why each lost mark happened.
- Return to mistakes after a day or two to check whether you can now solve the question independently.
The topic lists and plan below are revision aids, not a promise that a particular topic will appear or carry a fixed number of marks. Always check the current syllabus and official exam instructions.
Exam structure: Paper 1 and Paper 2
| Paper | Main area | Revision approach |
|---|---|---|
| Paper 1 | Physics | Practise setting up equations, diagrams, units and multi-step calculations. |
| Paper 2 | Chemistry | Practise calculations, reaction explanations, equations and scientific terminology. |
Confirm the current paper duration, mark allocation and examination instructions in the official 2026 DBE timetable and subject guidance rather than relying on unofficial summaries.
Paper 1 — Physics revision checklist
Mechanics
- Newton’s laws and free-body diagrams
- Net force, friction, tension and normal force
- Gravitational force and gravitational field strength
- Projectile motion and separating horizontal and vertical components
- Work, energy, power, momentum and impulse
Practice method: draw the diagram, choose a positive direction, write the relevant equation, substitute values with units, and check whether the final answer is physically reasonable.
Waves, sound and light
- Frequency, wavelength, amplitude and wave speed
- Doppler effect and electromagnetic waves
- Reflection, refraction and diffraction where required by your syllabus
Electricity and magnetism
- Coulomb’s law and electric fields
- Ohm’s law, series and parallel circuits, internal resistance and emf
- Electromagnetic induction, generators and motors
For circuit questions, label known quantities first and check whether the question asks for current, potential difference, resistance, power or energy. Do not assume that a formula can be used without checking its conditions.
Optical and photoelectric phenomena
- Photon energy and the photoelectric effect
- Work function and threshold frequency
- Emission and absorption spectra, and electron microscopes where prescribed
Paper 2 — Chemistry revision checklist
Matter and materials
- Atomic structure and periodic trends
- Ionic, covalent and metallic bonding
- Intermolecular forces and their effect on physical properties
- Organic chemistry: functional groups, naming, isomers and reactions
Chemical change
- The mole concept, stoichiometry, limiting reagents and percentage yield
- Energy changes and reaction profiles
- Reaction rates and factors affecting rate
- Chemical equilibrium and Le Chatelier’s principle
- Acids, bases, pH and titration calculations
- Galvanic and electrolytic cells, half-reactions and cell potential
Chemical systems
- Industrial processes listed in the current syllabus, including the relevant reactants, conditions and products
- Balanced equations and explanations that use precise chemical terminology
Formula reminders and data-sheet practice
| Topic | Reminder | Check before using |
|---|---|---|
| Electric circuits | V = IR | Use consistent units and identify the correct component or circuit section. |
| Wave motion | v = fλ | Keep frequency and wavelength units consistent. |
| Kinetic energy | Ek = ½mv² | Use mass in kilograms and speed in metres per second. |
| Gravitational potential energy near Earth | Ep = mgh | Use the height change and the appropriate gravitational field strength. |
| Photon energy | E = hf | Use the correct Planck constant and frequency units. |
| Mole calculations | n = m/M | Check that mass and molar mass use compatible units. |
Practise locating the required equation and constants in the official data sheet. Check the conditions attached to a formula instead of memorising it as a universal rule. For gas-volume calculations, use the conditions and molar gas volume specified in the question or official data sheet.
A practical six-week revision plan
| Week | Physics focus | Chemistry focus | Evidence of progress |
|---|---|---|---|
| 1 | Forces and gravitation | Atomic structure and bonding | Correctly explain the method for core questions. |
| 2 | Work, energy, power and momentum | Organic chemistry | Complete a short mixed question set. |
| 3 | Electrostatics and circuits | Stoichiometry and reaction rates | Show equations, substitutions and units. |
| 4 | Waves and electromagnetic induction | Equilibrium, acids and bases | Explain concepts without relying on notes. |
| 5 | Timed Paper 1 practice | Electrochemistry and chemical systems | Mark the paper and group errors by topic. |
| 6 | Target weak areas | Timed Paper 2 practice and corrections | Redo missed questions without the memo. |
If you have less than six weeks, use the same cycle with shorter blocks: identify the weakest high-priority topics, practise representative questions, and spend time correcting errors rather than only rereading notes.
How to answer exam questions more effectively
Multiple-choice questions
- Read the whole question and all answer options.
- Estimate the likely size and unit of the answer before selecting an option.
- Eliminate options that contradict the concept or units.
- Follow the official examination instructions about unanswered questions and time management.
Calculations
- Write down the known values and what the question asks you to find.
- Select the equation and show substitutions clearly.
- Convert to SI units when required.
- Include the final unit and check the sign, magnitude and significant figures.
Theory and explanations
- Answer the specific question rather than copying a broad definition.
- Use the scientific terms required by the topic.
- For equilibrium questions, identify the change, state the direction of shift and explain why.
- Use the memorandum to learn how many distinct points an explanation needs.
Use past papers as a diagnostic tool
Attempt a past paper or a timed section before checking the memorandum. For each lost mark, label the reason: concept gap, incorrect equation, calculation error, unit, misunderstood wording or incomplete explanation. Revise the cause, then attempt a similar question.
Open the Physical Sciences past-paper resource and use official DBE papers and memoranda where available. Check the year and paper before practising so you know which syllabus and exam format you are using.
Get help when you are stuck
If you cannot explain why an answer works, ask for a step-by-step explanation, then try a similar question on your own. StudyBuddy’s AI tutor can help you review Physics and Chemistry concepts and work through practice problems; always compare important exam guidance with your teacher and official materials.
Frequently overlooked revision habits
- Keep a formula-and-units page, but practise choosing the formula rather than only copying it.
- Redo incorrect questions a few days later without looking at the solution.
- Alternate Physics and Chemistry so both papers receive attention.
- Practise under timed conditions and leave time to check answers.
- Use official syllabus and examination documents to confirm coverage and instructions.
Frequently Asked Questions
Which topics should I prioritise in Matric Physical Sciences?
Use your current syllabus, teacher guidance and official DBE materials to prioritise. Common revision areas include mechanics, electricity, stoichiometry, organic chemistry, equilibrium, acids and bases, and electrochemistry; exact exam emphasis can vary.
How should I practise multiple-choice questions?
Read the full question and options, check units and estimate the answer where possible. Follow the official exam instructions and practise managing time across the whole paper.
Can I use the data sheet in the exam?
Check the official 2026 examination instructions and the data sheet provided for your paper. Practise finding the relevant formula and constants in the correct official document.
What is the best way to improve at calculations?
Write down known values, identify the unknown, select the appropriate equation, show substitutions, use consistent units and check the final answer. Review each error against the memorandum.
How can I use past papers effectively?
Attempt questions under timed conditions before checking the memorandum. Categorise errors, revise the underlying concept, then redo similar questions without looking at the solution.