Mass-Energy & BindingWhy fusion and fission both release energy.PhysicsThe mass of a nucleus is less than the sum of itsnucleons; the difference is the binding energy.E = Δmc² · 1 u = 931.5 MeVLight nuclei fusingEnergy releasedMoving up the curve.Heavy nuclei splittingEnergy releasedAlso moving up.Iron-56Neither releases energyThe peak.THE COMMON MISTAKE✗ Reading total binding energy off the curve✓ The curve is binding energy per nucleonUranium has more total binding energy than iron but less per nucleon, and it isthe per-nucleon figure that governs stability.Stellar fusion stops at iron. A star that reaches an iron core has noenergy source left, and collapses.Mass-Energy & Bindinglearnposters.com
Mass-Energy & Binding — printable physical science wall chart from LearnPosters. Free vector PDF, US Letter and A4.

What’s on the Mass-Energy & Binding poster

The rule, 3 worked examples, and the mistake everyone makes.

Stellar fusion stops at iron. A star that reaches an iron core has no energy source left, and collapses.

Questions about the Mass-Energy & Binding poster

What’s on the Mass-Energy & Binding poster?
The rule, 3 worked examples, and the mistake everyone makes. The mass of a nucleus is less than the sum of its nucleons; the difference is the bin…; E = Δmc² · 1 u = 931.5 MeV; Light nuclei fusing = Energy released; Heavy nuclei splitting = Energy released; Iron-56 = Neither releases energy; Common mistake: Reading total binding energy off the curve → The curve is binding ene…. Stellar fusion stops at iron. A star that reaches an iron core has no energy source left, and collapses.
Who is the Mass-Energy & Binding poster for?
Mass-Energy & Binding belongs to the Physics section rather than to a school year, because physical science is not something one grade owns. Anyone learning quantum can pin it up — a beginner, a student mid-course, or someone revising years later.
When should you use the Mass-Energy & Binding poster?
Iron-56 sits at the peak of binding energy per nucleon. Moving toward it releases energy. A wall chart earns its place by being glanceable from where the work is happening, so Mass-Energy & Binding belongs on the wall where that physical science work actually happens, within glancing distance, rather than filed away.
What other posters go with Mass-Energy & Binding?
Quantum Numbers, Blackbody Radiation and Conservation Laws sit alongside Mass-Energy & Binding in the Physics section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Quantum NumbersBlackbody RadiationConservation Laws
Is the Mass-Energy & Binding poster free to download and print?
Yes. Mass-Energy & Binding 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 Mass-Energy & Binding poster print at?
Mass-Energy & Binding 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 Mass-Energy & Binding loses nothing.Printing guide

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