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Your first step. The foundation every physics concept is built on. Dimensional analysis, SI units, conversion chains, and what it means when numbers have units attached.

Honors Physics AP Physics 1 AP Physics 2

Begin Unit 1.1 →

How it works

Three things. That's all.

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Video Lessons

Each concept explained from scratch. Not a lecture recap — built specifically to make the parts that tend to not click actually click.

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Practice PDFs

Problem sets matched to each unit. Work through them right after the video while it is fresh. The questions look like your actual tests.

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1-on-1 Sessions

Optional live sessions when you want direct help. 60 minutes, your question, full attention. A $25 PPIE donation is encouraged but the session is free regardless.

Prefer video

Watch everything in sequence

All Physics videos, in unit order, on one page.

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Wondering what's coming next?

Every unit, in order, with an honest status. Physics through Unit 9. Precalculus in development.

See the roadmap →

Start here. Not somewhere else.

Three things. That's all.