For IGCSE, Cambridge AS, A Level and AP Physics 1 & 2. Free learning, with no account or payment.
Reach the Peak of Understanding.
Find your course or explore a concept, from forces to photons.
Change the speed. Watch the path. What turns an orbit into an escape?
At circular speed, gravity continually changes the planet’s direction.
Preset launch · 1.00× local circular speed
Five international Physics courses, taught the same way: structured notes, deliberate practice, structured missions, exam-style problem solving, and virtual laboratories. Pick your course — the path is the same.
Forces, energy, waves, electricity, magnetism, atomic physics. A balanced foundation with emphasis on real-world contexts and mathematical fluency.
Kinematics, dynamics, deformation, waves, superposition, electricity, D.C. circuits and particle physics. Builds analytical rigour on top of IGCSE fluency.
Circular motion, gravitational fields, thermodynamics, oscillations, capacitance, magnetic fields, electromagnetic induction, quantum physics, nuclear physics.
Kinematics, forces, energy, momentum, torque, rotation, oscillations and fluids — the current eight-unit AP Physics 1 framework.
Thermodynamics, electric fields and potential, circuits, magnetism, electromagnetic induction, optics, waves and modern physics.
Not sure where to begin? Use our short guide to choose the course that matches your syllabus or learning goals.
Read the course guide →Every course follows the same five-stage pathway. You read, you practise, you take on missions, you face the exam arena, and you test what you've learned in a virtual lab — so theory and reality stay connected at every step.
Structured, illustrated notes written for understanding — not memorisation. Concepts first, equations second, intuition throughout.
Explore →Worked examples and deliberate practice questions, with full solutions and diagnosis of the misconceptions that trip most students up.
Explore →Structured multi-step challenges that connect several concepts to a real problem — synoptic thinking, the way exams actually test it.
Explore →Timed, exam-style problem sets under realistic conditions. Mark schemes explained — not just answers, but the structure the examiner is looking for.
Explore →Real, interactive experiments that turn equations into things you can manipulate. Investigate a pendulum, measure refraction and explore orbital motion.
Explore →Make a prediction, use the apparatus and defend your conclusion with evidence. Every investigation opens a working virtual lab.
Investigate pendulum length, time repeated oscillations and use period–length data to estimate gravitational field strength.
Open this lab →Connect meters correctly, compare series and parallel circuits, and collect evidence for an ohmic I–V graph.
Open this lab →Measure angles from the normal and use a graph of sin i against sin r to investigate refractive index.
Open this lab →Form a real image, measure object and image distances, and compare magnification calculated in two ways.
Open this lab →Measure drop and rebound heights, repeat trials and use a graph to study energy returned during a bounce.
Open this lab →Compare simultaneous temperature readings and account for energy transferred between hot and cold water.
Open this lab →Collect evidence. Build understanding. Explore all 30 investigations in the virtual lab collection →.
Physics educator · 20+ years of classroom experience
Read the founder’s storyI created Physics Crest to share high-quality Physics education freely, drawing on over 20 years of classroom teaching experience. I want every student to be able to ask questions, investigate ideas and learn with confidence.
Our notes, practice questions, Physics Missions, Exam Arenas and virtual laboratories are open to learners without an account or payment. The aim is to make understanding more accessible, not to put it behind a paywall.
Whether you are studying independently, teaching a lesson or supporting a child, I hope you find a useful starting point here. Physics Crest is an independent educational project, not affiliated with or endorsed by Cambridge International or College Board.