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IB Physics HL · E.4 Fission

Mass defect, binding energy, and nuclear reactions for IB Physics HL

Mass defect, binding energy, and nuclear reactions is mapped to E.4 Fission in the IB Physics HL pathway. Use this public guide to see exactly where the concept fits, what to master, and which GioPhysics resource continues the study sequence.

E · Nuclear and quantum physicsSL + HLGuide 1 of 3

Where this fits

E.4 Fission

Curriculum
IB Physics HL
Theme or group
Nuclear and quantum physics
Current framework
First assessment 2025

Fission energetics follow from the binding-energy curve in Chapter 46.

Mastery checklist

Know what success looks like.

  1. 01

    Track energy transfers with a clearly stated system boundary.

  2. 02

    Choose the appropriate work, energy, or power relationship and keep its sign convention visible.

  3. 03

    Account for useful output, dissipation, and conservation before judging the final value.

Exam lens

Build, apply, check.

E.4 Fission is identified as SL + HL in this curriculum map. Build the concept first, then practise selecting a model, showing working, and checking the final result.

Teaching sequence

E.4 Fission

This syllabus point maps to 3 ordered concept guides.

  1. 01Mass defect, binding energy, and nuclear reactionsCurrent guide
  2. 02Fission and chain reactions
  3. 03Fission reactors

Continue on GioPhysics

Choose the right next step.

The curriculum context stays public. Lesson and presentation access follows the existing GioPhysics membership rules.

LearnOpen the mapped lessonMass defect, binding energy, and nuclear reactionsTeachOpen the presentationClassroom sequence for this conceptPractiseOpen problem applicationsEasy through expert problem pathwaysPlanOpen the full curriculum mapIB Diploma Programme Physics