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Interactive simulations, instant feedback, and a system that makes physics actually stick. IGCSE & GCSE ready. Free, no catch.
Interact with real physics simulations — change variables like force, mass, and velocity, see what happens, and build genuine understanding. No memorizing formulas. Just hands-on, interactive physics learning that sticks.
Every simulation, quiz, and concept on Physiworld is completely free. No setup, no friction, no barriers — just open your browser and start learning physics instantly.
Change a variable and watch what happens in real time. Interactive feedback turns abstract physics concepts into genuine understanding — every single time.
Earn XP as you explore simulations, solve challenges, and master new concepts. Leaderboards, achievements, and progress tracking show exactly how far you've come in your physics journey.
From IGCSE & GCSE students and teachers around the world
"The Core/Supplement tags meant I only revised what my paper actually tests."
"Worked solutions after every question is how I finally fixed my method marks."
"Went from a 5 to a 7 in IGCSE Physics. The exam-style quizzes did it."
"My class actually revises now — it doesn't feel like revision."
"Finally understood moments and momentum instead of memorising them."
"The 0625 coverage is genuinely complete. Nothing caught me out."
"I use the quizzes as low-stakes starters every lesson."
"Energy and power finally clicked the night before my paper."
"Free, and better than the revision guide I paid for."
"My son stopped dreading physics homework. That's the win."
"The Core/Supplement tags meant I only revised what my paper actually tests."
"Worked solutions after every question is how I finally fixed my method marks."
"Went from a 5 to a 7 in IGCSE Physics. The exam-style quizzes did it."
"My class actually revises now — it doesn't feel like revision."
"Finally understood moments and momentum instead of memorising them."
"The 0625 coverage is genuinely complete. Nothing caught me out."
"I use the quizzes as low-stakes starters every lesson."
"Energy and power finally clicked the night before my paper."
"Free, and better than the revision guide I paid for."
"My son stopped dreading physics homework. That's the win."
"Walked into the exam calm because I'd seen every question type."
"The instant feedback shows exactly where I lose marks."
"Best free IGCSE Physics practice I've found, full stop."
"I set it for homework and the worked solutions save me hours."
"Electricity used to terrify me — now it's my strongest topic."
"Practising by tier meant no wasted time on Supplement I didn't need."
"Got my predicted grade up a whole level before mocks."
"The lessons build the intuition, the quizzes prove it. Perfect combo."
"I revise on my phone on the bus. That alone changed my consistency."
"As a tutor, I point every IGCSE student here first."
"Walked into the exam calm because I'd seen every question type."
"The instant feedback shows exactly where I lose marks."
"Best free IGCSE Physics practice I've found, full stop."
"I set it for homework and the worked solutions save me hours."
"Electricity used to terrify me — now it's my strongest topic."
"Practising by tier meant no wasted time on Supplement I didn't need."
"Got my predicted grade up a whole level before mocks."
"The lessons build the intuition, the quizzes prove it. Perfect combo."
"I revise on my phone on the bus. That alone changed my consistency."
"As a tutor, I point every IGCSE student here first."
That sinking feeling when a question looks nothing like your notes? It disappears when you've actually understood the physics. Physiworld covers the complete Cambridge IGCSE Physics (0625) syllabus — learn each idea, prove it with exam-style questions, and see exactly where every mark comes from.
Work through interactive IGCSE & GCSE Physics lessons that build genuine understanding — so you can reason through unseen exam questions instead of hoping you memorised the right formula.
Every question is written around the official Cambridge IGCSE 0625 syllabus and tagged Core or Supplement, with a full worked solution after every answer — so you practise exactly what your paper tests.
Turn "I sort of get it" into marks on the page. Build the exam technique, speed and confidence that lift your IGCSE & GCSE Physics grade — and deepen your understanding for good.
Full syllabus coverage · Free to start · No credit card
Original questions, written to prepare you for the Cambridge IGCSE exam and aligned to the 0625 syllabus. Physiworld is not affiliated with Cambridge Assessment.
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Bring interactive IGCSE & GCSE Physics into your classroom. Let students experiment, visualise, and truly understand the syllabus — not just memorise formulas.
Concepts is a topic based section of Physiworld that gives you fast, clear answers to questions you've always wondered about — no account, no fluff, just physics that makes sense.
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