Physics
Learn Physics for Free
Physics is the study of matter, energy and the fundamental laws that govern how the universe works. It explores forces, motion, electricity, waves, particles and the structures of the cosmos. Physics underpins engineering, technology, medicine and countless real-world applications.
This page introduces the major areas of physics and links to clear, accessible learning resources including videos, articles and practice materials.
Introduction to Physics
An overview of what physics studies, key themes such as forces, energy and interactions, and why the subject is essential.
Forces and Motion
Covers Newton’s laws, speed, velocity, acceleration and how forces affect movement.
Energy
Explains different forms of energy, energy transfer, conservation of energy and efficiency.
Waves (Basics)
Introduces wave types, frequency, amplitude, wavelength and everyday wave examples.
Core Physics Topics
Electricity
Covers circuits, current, voltage, resistance and simple circuit diagrams.
Magnetism and Electromagnetism
Introduces magnetic fields, electromagnets and how electricity and magnetism interact.
Light and Sound
Explains reflection, refraction, lenses, colour, pitch and volume.
Matter and Particle Theory
Covers particle behaviour, states of matter and simple models of particles.
Intermediate Physics
Work, Power and Momentum
Explains how work is done, power calculations and momentum in collisions.
Heat and Thermal Physics
Covers temperature, heat transfer, conduction, convection and radiation.
Pressure
Introduces pressure in solids, liquids and gases and how it changes in different contexts.
Astronomy (Basics)
Covers the solar system, stars, galaxies and basic astronomical concepts.
Advanced Physics
Nuclear Physics
Explains atoms, isotopes, radioactive decay, half-life and nuclear reactions.
Modern Physics (Intro)
Covers basic ideas from quantum theory, relativity and particle physics.
Advanced Electricity and Magnetism
Explores more complex circuit behaviour and electromagnetic applications.
Physics Resources
Physics Videos
Curated free videos explaining key physical principles, experiments and real-world applications.
Physics Practice & Worksheets
Downloadable worksheets and practice materials for core physics topics.
Optional Next Steps
Once learners understand the fundamentals, they can explore:
- Applied Physics – Engineering, energy production, medical imaging and technology.
- Experimental Skills – Measurement, data analysis, lab techniques.
- Case Studies – Real examples showing physics at work in everyday life and global challenges.