For teachers
Everything here is free, with no account, no paywall and no advertising. You are welcome to project it, link it, assign it, or embed the simulations directly in your own class site. You do not need to ask.
Embed any simulation
Each simulation has a bare, frame-able version at /embed/<name>. Paste the snippet into a page, a Canvas or Schoology module, or a Google Site. It carries no navigation and no tracking, and it works on phones. The only thing asked is that the credit line stays, because that link is how other teachers find the site.
Projectile launcher
Set launch speed and angle and fire. Good for the moment a class discovers that 45 degrees maximises range and that complementary angles land together.
Embed this simulation on your class site, free
Paste this into any web page, LMS, or class site. It is responsive, works on phones, and the small credit link stays on.
Free-body diagram builder
Students place the force arrows themselves and get checked, including on the forces they invent. This is the one that a worked example cannot substitute for.
Embed this simulation on your class site, free
Paste this into any web page, LMS, or class site. It is responsive, works on phones, and the small credit link stays on.
Inclined plane simulator
Tilt the ramp until the block slips. Sweeping the mass while the verdict holds still is a fast way to show that the slip angle does not depend on it.
Embed this simulation on your class site, free
Paste this into any web page, LMS, or class site. It is responsive, works on phones, and the small credit link stays on.
Collision lab
Two carts and an elasticity slider, with momentum and kinetic energy drawn as signed bars before and after. The total momentum bar holds still at every setting.
Embed this simulation on your class site, free
Paste this into any web page, LMS, or class site. It is responsive, works on phones, and the small credit link stays on.
What the pages are built on
Every unit and topic page is written from the College Board Course and Exam Descriptions effective Fall 2024, and names the learning objectives, essential knowledge statements and boundary statements it covers. That is deliberate: the boundary statements are the part that tells you what a question can and cannot ask, and they are the part most prep material leaves out.
It matters more than usual right now, because all four courses were rewritten for Fall 2024 and a great deal of what students find still describes the previous versions. Fluids sitting in AP Physics 1 as Unit 8 is the example that catches people most often.
All four courses are covered: AP Physics 1, AP Physics 2, C: Mechanics and C: Electricity and Magnetism. The two Physics C courses are written with the calculus treatment kept separate from the algebra-based pages rather than reworded from them, so C: Mechanics Unit 3 leads on the work integral because that is what its equation sheet prints.
If you find something wrong
Please say so. The pages cite the CED so that an error is checkable rather than a matter of opinion, and a correction from someone who teaches the course is worth more than anything else that arrives. Contact details are on the about page.
Reuse and citation
Link freely, embed freely, use pages in class freely. The site is not currently released under an open licence, so please do not republish substantial portions as your own; the terms say the same in full. To cite a page, the title, the URL and the date are enough.