IBDP Physics Notes: A Topic-Wise Study Guide for HL and SL Students
IBDP Physics Notes Should Follow the Five Themes, A to E Good IBDP physics notes follow the structure of the current syllabus: five themes labelled A to E, split into 24 numbered topics from A.1 to E.5. Every question in Paper 1 and Paper 2 traces back to one of those topics, so notes organised any other way make revision slower than it needs to be. The course was first assessed in May 2025 and dropped the old options paper. That matters if you are borrowing physics ibdp notes from an older student, because the topic numbers and some of the content no longer match. Check every borrowed page against the current guide before you trust it. The sections below go through each theme, flag what is HL only, and then cover how to format and use the notes so they raise marks instead of just filling a folder. Theme-Wise IBDP Physics Notes: What Goes in Each Theme Theme A: Space, Time and Motion Theme A opens the course. A.1 covers kinematics and A.2 forces and momentum, which is where circular motion lives. A.3 then moves on to work, energy and power. HL students add A.4 rigid body mechanics, with torque and moment of inertia, plus A.5 on Galilean and special relativity. Notes for this theme should hold more worked problems than prose. A definition of momentum earns very little unless you can apply it to a collision and keep the signs straight. Theme B: The Particulate Nature of Matter This theme pairs thermal physics with electricity. B.1 handles thermal energy transfers, B.2 the greenhouse effect, B.3 gas laws and B.5 current and circuits. B.4 thermodynamics is HL only. The greenhouse effect page should state the energy balance in words, since examiners ask you to explain it rather than calculate it. Circuit notes need a clear section on internal resistance, where marks slip away quietly. Theme C: Wave Behaviour Theme C runs from simple harmonic motion in C.1 and the wave model in C.2 to wave phenomena in C.3. C.4 covers standing waves and resonance, and C.5 the Doppler effect. Draw the graphs. Displacement, velocity and acceleration against time for SHM come up often, and a labelled sketch in your notes does more than a paragraph describing the same curves. Theme D: Fields D.1 covers gravitational fields, D.2 electric and magnetic fields and D.3 motion in electromagnetic fields. D.4 induction is HL only. Fields notes work best as a side-by-side table. Newton’s law of gravitation and Coulomb’s law share the same inverse square shape, so putting them in adjacent columns shows what carries over and what does not, such as gravity only ever attracting. Theme E: Nuclear and Quantum Physics E.1 looks at the structure of the atom and E.3 at radioactive decay, with E.4 on fission and E.5 on fusion and stars. E.2 quantum physics is HL only. Keep a short list of what is conserved in each nuclear reaction. A large share of lost marks here comes from nuclear equations where the mass numbers or charges do not balance. IBDP Physics HL Notes vs SL Notes: What Actually Changes HL notes need five extra topics and extra depth inside shared ones, while SL notes cover the same five themes with less. The five HL-only topics are A.4, A.5, B.4, D.4 and E.2. Teaching time reflects the gap, at 110 hours for SL and 180 for HL, though both levels carry 80% external assessment and 20% internal assessment. The trap is assuming those five topics are the whole difference. Several shared topics carry additional HL content, so it pays to read the HL syllabus line by line before deciding what your ibdp physics hl notes still lack. A simple habit helps both groups. Mark every HL-only derivation or subtopic with a corner tag, so an SL student can skip it without losing the thread and an HL student can see at a glance what needs separate revision. Circular Motion IBDP Physics Notes, With a Worked Example An object moving at constant speed v on a circle of radius r accelerates towards the centre at a = v²/r. The net inward force is called the centripetal force, and it is not a new force. It is the resultant of forces you already know, such as friction, tension or gravity. The equations to keep on the page are F = mv²/r and F = mω²r, with ω = 2π/T linking angular speed to the period. Check which of these your data booklet already supplies, so your notes spend space on understanding rather than copying. Here is the kind of example worth writing out. A 1,200 kg car takes a bend of radius 50 m at 15 m/s. The inward force needed is 1,200 × 15² ÷ 50 = 5,400 N, and on a flat road that has to come entirely from friction. If the tyres cannot supply it, the car stops following the curve. Plenty of students search for a circular motion ibdp physics notes pdf, but a downloaded file only helps if you have worked through every line yourself. A better route is to build this one page in your own words, add the free-body diagram, then save or print it as your own PDF. The same page connects forward to D.1, where gravity plays the role of centripetal force for satellites. How to Format IBDP Physics Notes So You Can Revise From Them Aim for one page per subtopic. Each page needs the definition in the wording a mark scheme would reward, the key equations with every symbol explained, one clear diagram, a worked example carried through with units, and a line on the mistake students most often make there. Write definitions around command terms. “State” wants a short fact, “explain” wants a reason, and “determine” wants a calculated value with working. Seeing the same term attached to the same type of answer, page after page, trains the habit faster than rereading. Once a page is written, cover