IB Physics SL E.3.3 Binding energy curve
IB Physics SL E.3.3 Binding energy curve

IB Physics syllabusFirst assessment 2025
Practise reading the binding energy curve to estimate total binding energy, compare stability, and decide when fission or fusion releases energy.
How this is tested
- read binding energy per nucleon from the graph and multiply by A to estimate total binding energy
- use the graph to decide which nuclide is more stable from the higher binding energy per nucleon
- use the curve peak near iron to decide whether fusion or fission releases energy for a nuclide
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