What’s on the Modelling Assumptions poster
A 6-row table: Assumption · Breaks when.
Common assumptions and their limits.
- Point mass — Rotation or size matters
- No air resistance — Speed is high or the object is light
- Ideal gas — Pressure is high or temperature is low
- Small angle, sin θ ≈ θ — Angle exceeds about 10°
- Ohmic conductor — Temperature changes significantly
- Inextensible string — Tension is large
Stating your assumptions is not a formality. It defines the range over which your answer can be trusted.
Questions about the Modelling Assumptions poster
- What’s on the Modelling Assumptions poster?
- A 6-row table: Assumption · Breaks when. Common assumptions and their limits. Point mass — Rotation or size matters; No air resistance — Speed is high or the object is light; Ideal gas — Pressure is high or temperature is low; Small angle, sin θ ≈ θ — Angle exceeds about 10°; Ohmic conductor — Temperature changes significantly; Inextensible string — Tension is large. Stating your assumptions is not a formality. It defines the range over which your answer can be trusted.
- Who is the Modelling Assumptions poster for?
- Modelling Assumptions 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 Modelling Assumptions poster?
- Every model assumes something. Knowing which assumption fails first is the skill. A wall chart earns its place by being glanceable from where the work is happening, so Modelling Assumptions belongs on the wall where that physical science work actually happens, within glancing distance, rather than filed away.
- What other posters go with Modelling Assumptions?
- Accuracy & Precision, Analysing Results and Dimensional Analysis sit alongside Modelling Assumptions 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 ResultsDimensional Analysis
- Is the Modelling Assumptions poster free to download and print?
- Yes. Modelling Assumptions 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 Modelling Assumptions poster print at?
- Modelling Assumptions 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 Modelling Assumptions loses nothing.Printing guide
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