What’s on the Relativistic Momentum poster
The rule, 3 worked examples, and the mistake everyone makes.
- Momentum is the Lorentz factor times the classical expression, and diverges as speed…
- p = γmv · Ek = (γ − 1)mc²
- v << c = p ≈ mv
- v = 0.99c = γ ≈ 7
- LHC protons = γ ≈ 7000
- Common mistake: Using ½mv² at high speed → Using (γ − 1)mc²
LHC protons reach 0.999999991c. Adding more energy after that barely changes speed at all — only momentum.
Questions about the Relativistic Momentum poster
- What’s on the Relativistic Momentum poster?
- The rule, 3 worked examples, and the mistake everyone makes. Momentum is the Lorentz factor times the classical expression, and diverges as speed…; p = γmv · Ek = (γ − 1)mc²; v << c = p ≈ mv; v = 0.99c = γ ≈ 7; LHC protons = γ ≈ 7000; Common mistake: Using ½mv² at high speed → Using (γ − 1)mc². LHC protons reach 0.999999991c. Adding more energy after that barely changes speed at all — only momentum.
- Who is the Relativistic Momentum poster for?
- Relativistic Momentum belongs to the Physics section rather than to a school year, because physical science is not something one grade owns. Anyone learning relativity can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Relativistic Momentum poster?
- Momentum grows without bound as v approaches c. Energy input goes into momentum, not speed. A wall chart earns its place by being glanceable from where the work is happening, so Relativistic Momentum belongs on the wall where that physical science work actually happens, within glancing distance, rather than filed away.
- What other posters go with Relativistic Momentum?
- Black Holes, Cosmology and General Relativity sit alongside Relativistic Momentum in the Physics section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Black HolesCosmologyGeneral Relativity
- Is the Relativistic Momentum poster free to download and print?
- Yes. Relativistic Momentum downloads as a free PDF with no account, no email and no watermark, like everything else in the Physics section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Relativistic Momentum poster print at?
- Relativistic Momentum is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Relativistic Momentum loses nothing.Printing guide
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