Your physics journey
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Join 1,600+ learners. Start with one simulation. Stick around because it actually makes sense.
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Join 1,600+ learners mastering physics through interactive missions, clear explanations, and practice that builds real understanding.
Interactive lessons build real understanding — clear visuals over memorised formulas, with a quick “what to remember” on every idea.
Exam-style questions with instant feedback — and a full worked solution the moment you answer, so you see exactly why.
Physiworld resurfaces the questions you got wrong and brings them back at just the right moment — so the tricky parts turn into the ones you know cold.
A fresh challenge drops every day. Solve it, earn XP, and climb a live leaderboard alongside everyone else learning right now.
For students, teachers, and anyone curious about physics
"Something like Duolingo but with physics. It was boring for me in high school — this actually got me interested."
"I’ve always hated learning physics, but this actually makes it easier — kind of fun, even."
"Genuinely impressed with how engaging it is and how simple it was to pick up. Definitely using it again."
"Feels way more put-together than I expected. I’m not even into science and I still learned something in the first few clicks."
"A genuinely good way to teach physics — wish something like this existed when I was in school."
"A bit like Brilliant, but more specific about physics. Feels just like the lab simulations from my physics labs."
"Just made an account and was surprised by how good it is — exactly the tool I’d been looking for before my course starts."
"Physics concepts never clicked for me before. Turning it into something game-like actually helps."
"The simulations are pretty fun — solid for a free physics site."
"YouTube videos weren’t cutting it — way too much effort to find the useful parts. This is exactly what I needed."
"Quick, simple problems that help me step up to the harder ones my professor gives out."
"Didn’t expect an interactive tool to make physics feel this engaging. Using it for my studies now."
"The visuals really helped me understand — I’ll be using this site regularly for help."
"Made an account already — looks great!"
"You can find yourself just browsing away — there’s a lot to go through."
"I haven’t seen many interactive physics websites. Pretty cool concept."
"Saved it for my A-level physics revision."
"Nice visual effects — the demo looks promising."
"Love it. Keep up the good work."
Understand the physics, practise real exam questions, and see exactly where every mark comes from.
A trolley speeds up from 2 m/s to 8 m/s in 3 s. Calculate its acceleration. [3]
Understand each idea before you memorise a formula.
Tagged Core & Supplement, marked the moment you answer.
See exactly where every mark comes from.
Original questions aligned to the Cambridge IGCSE 0625 syllabus, with practice that also prepares you for GCSE, AP Physics 1 and NGSS-aligned courses. Physiworld is not affiliated with Cambridge Assessment or the College Board. AP is a registered trademark of the College Board.
Every simulation you run, every quiz you complete — it all counts toward a shared goal. Add friends to compare XP head-to-head, or create a free class so your whole group can climb the same leaderboard.
Sign in to see your rank and contribute to this week's goal!
Type a calculation and press enter — the free calculator solves it with full step-by-step working. No sign-up required.
Create a class, share one code, and your students land on a private weekly leaderboard. Built for IGCSE, GCSE, AP Physics and NGSS.
Rolling out class codes across a department or want a walkthrough? Email us — we’ll help you set it up.
Real exam-style problems to crack. Solve them for XP and climb the leaderboard.
Dynamics · Kinematics · equations of motion
Everything you need to know about Physiworld.
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