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Interactive simulations, instant feedback, and XP that makes physics actually stick. Climb the leaderboard, get exam-ready, and start 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 curious beginners to exam students and teachers around the world
"The Core/Supplement tags meant I only revised what my paper actually tests."
"I had zero background. This is the first time I didn't feel lost."
"Went from a 5 to a 7 in IGCSE Physics. The exam-style quizzes did it."
"Gravity finally makes intuitive sense to me."
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"Way more intuitive than the lectures I sat through at uni."
"Worked solutions after every question is how I finally fixed my method marks."
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"The 0625 coverage is genuinely complete. Nothing caught me out."
"I'm 34 and just doing this for fun. It's honestly addictive."
"The Core/Supplement tags meant I only revised what my paper actually tests."
"I had zero background. This is the first time I didn't feel lost."
"Went from a 5 to a 7 in IGCSE Physics. The exam-style quizzes did it."
"Gravity finally makes intuitive sense to me."
"My class actually revises now — it doesn't feel like revision."
"Way more intuitive than the lectures I sat through at uni."
"Worked solutions after every question is how I finally fixed my method marks."
"The XP system keeps me coming back every single day."
"The 0625 coverage is genuinely complete. Nothing caught me out."
"I'm 34 and just doing this for fun. It's honestly addictive."
"Walked into the exam calm because I'd seen every question type."
"Finally a physics resource that respects your intelligence."
"Best free IGCSE Physics practice I've found, full stop."
"Better than any YouTube playlist I've tried."
"The instant feedback shows exactly where I lose marks."
"My students went from dreading physics to actually asking questions."
"Electricity used to terrify me — now it's my strongest topic."
"The simulations are incredibly well made."
"As a tutor, I point every student here first."
"Feels like how physics should be taught."
"Walked into the exam calm because I'd seen every question type."
"Finally a physics resource that respects your intelligence."
"Best free IGCSE Physics practice I've found, full stop."
"Better than any YouTube playlist I've tried."
"The instant feedback shows exactly where I lose marks."
"My students went from dreading physics to actually asking questions."
"Electricity used to terrify me — now it's my strongest topic."
"The simulations are incredibly well made."
"As a tutor, I point every student here first."
"Feels like how physics should be taught."
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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XP isn't just a number — it's a live record of everything you've explored and understood. New ways to earn reset every day.
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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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