This free online notebook follows the IB MYP Physics 4&5 course (Heathcote, Oxford), organised around the 12 key-concept units of the syllabus. Explanations are written in easy, plain English so you can review each topic independently, any time, on any device.
Everything around you — your desk, the air you breathe, the water in your bottle — is made of tiny particles.
Open unit →A force is a push or a pull.
Open unit →Physics is built on evidence from careful measurement.
Open unit →This unit is about describing movement using numbers and graphs: how fast something goes, whether it is speeding up, and how to read distance–time and speed–time graphs.
Open unit →Every energy resource we use has an effect on the environment.
Open unit →This unit is about how electric circuits function: how current flows, what voltage and resistance mean, and how components behave differently in series and parallel circuits.
Open unit →Waves transfer energy without transferring matter.
Open unit →Forces have real consequences: they can cause objects to turn, and they act differently depending on the area they push on.
Open unit →Scientific models are not invented once and never changed — they develop as new evidence appears.
Open unit →Energy is never created or destroyed — it is only transformed from one store into another, or transferred from one place to another.
Open unit →This unit brings together everything about energy: how to calculate work done, kinetic energy, gravitational potential energy, and power.
Open unit →The electromagnetic (EM) spectrum shows a clear pattern: as wavelength decreases, frequency and energy increase.
Open unit →