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Phi Tuition
Introduction to Physics.

A free guide to starting A-Level Physics with confidence — covering S.I. units, dimensional analysis, vectors, density and graphs, with worked examples, practice questions and full worked answers.

Free resource · A-Level · IB · International Curricula · Physics
Introduction to A-Level Physics

Start A-Level Physics on solid foundations

Physics at A-Level rewards students who master the fundamentals early. This guide builds exactly that foundation, from S.I. units through to reading and interpreting graphs.

Written by Dr Stathis Stefanidis — physicist, educator, and contributor to the Higgs boson discovery at CERN — it covers the essential quantitative toolkit every A-Level Physics student needs, with worked examples throughout.

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What You’ll Find Inside

A complete first chapter, from units to worked answers

Foundations
Quantities, Measurement & S.I. Units
Natural quantities, scalars and vectors, the seven S.I. base units, and the full set of S.I. prefixes — with worked conversion examples throughout.
Dimensional Analysis
Equations of Dimensions & Density
How to derive and check the homogeneity of a physics equation, plus density and its S.I. units — a core skill examiners test throughout A-Level Physics.
Vectors & Graphs
Describing Change & Reading Graphs
Vectors and their properties, the rate of change of a quantity, and the linear and quadratic functions students meet again and again across the course.
Practice & Answers
64 Questions With Full Worked Solutions
13 multiple-choice questions and 51 exercises spanning every topic in the guide — every single one with a complete, fully worked answer.

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