Physics, simply explained.

Free, complete physics lessons for students and teachers. Every page is a full lesson: watch it, practise it, explore it and get exam ready.

I'm a student I'm a teacher


Every page is a lesson

You won't find a page of notes to scroll through. Each topic walks you from first idea to exam answer, in the same four parts every time, so you always know where you are.

Students work through it in order. Teachers can set a single part as homework or use the whole page in class.

Students

Build real understanding, then test it.

  • Clear, step-by-step explanations of core concepts
  • Exam-style questions with worked solutions
  • Interactive activities that build intuition
Start learning

Teachers

Lessons you can use tomorrow.

  • Ready-to-use lessons for high school and introductory college physics
  • Videos and activities set for flipped-classroom homework
  • Quick revision and extra material for any curriculum topic
Explore teacher resources

Hi, I'm Paul

I've taught physics for 32 years, and everything here is free. If it helps you or your class, you can support the work with a coffee or on Patreon.

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More about me

"Science is either physics or stamp collecting!"Ernest Rutherford

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