SEAB O-Level Physics (6091, 2026): The Definitions & Formulae Guide
30 Nov 2025, 00:00 Z
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Q: What does SEAB O-Level Physics (6091, 2026): The Definitions & Formulae Guide cover?
A: A syllabus-faithful, exam-ready list of definitions and relationships explicitly required in Singapore's O-Level Physics (6091, 2026), plus clarifications on common extras.
This post distills the main definitions and formulae that the SEAB O-Level Physics (6091, 2026 syllabus) explicitly expects you to know and apply. Where a concept is commonly taught but not printed as a “recall/apply” relationship in the syllabus, I label it accordingly so you don't memorise more than you need.
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At-a-glance formula sheet
Units are SI unless stated. Use the value of given in the question. If none is given, follow your school’s convention (many schools use




