What’s on the Dimensional Analysis poster
The rule, 3 worked examples, and the mistake everyone makes.
- Both sides of any physical equation must have identical dimensions.
- [Force] = MLT⁻² · [Energy] = ML²T⁻²
- v = u + at = LT⁻¹ = LT⁻¹ + LT⁻²·T
- Check E = ½mv² = ML²T⁻² both sides
- Deriving a form = Fixes exponents, not constants
- Common mistake: Treating a dimensional check as proof → It can only disprove
Arguments of sin, log and exp must be dimensionless. That is a fast check people frequently forget.
Questions about the Dimensional Analysis poster
- What’s on the Dimensional Analysis poster?
- The rule, 3 worked examples, and the mistake everyone makes. Both sides of any physical equation must have identical dimensions.; [Force] = MLT⁻² · [Energy] = ML²T⁻²; v = u + at = LT⁻¹ = LT⁻¹ + LT⁻²·T; Check E = ½mv² = ML²T⁻² both sides; Deriving a form = Fixes exponents, not constants; Common mistake: Treating a dimensional check as proof → It can only disprove. Arguments of sin, log and exp must be dimensionless. That is a fast check people frequently forget.
- Who is the Dimensional Analysis poster for?
- Dimensional Analysis belongs to the Physics section rather than to a school year, because physical science is not something one grade owns. Anyone learning methods can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Dimensional Analysis poster?
- If the dimensions do not match, the equation is wrong. No exceptions. A wall chart earns its place by being glanceable from where the work is happening, so Dimensional Analysis belongs on the wall where that physical science work actually happens, within glancing distance, rather than filed away.
- What other posters go with Dimensional Analysis?
- Accuracy & Precision, Analysing Results and Designing an Experiment sit alongside Dimensional Analysis in the Physics section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Accuracy & PrecisionAnalysing ResultsDesigning an Experiment
- Is the Dimensional Analysis poster free to download and print?
- Yes. Dimensional Analysis 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 Dimensional Analysis poster print at?
- Dimensional Analysis 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 Dimensional Analysis loses nothing.Printing guide
Related posters
Charts that sit alongside Dimensional Analysis on the same wall.
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