Library

Learn how to read, write and calculate using the correct number of significant figures, and how to express the uncertainty of a physical measurement correctly.

Understand why the momentum of an isolated system is always conserved, and learn to distinguish between elastic and inelastic collisions using practical examples (billiards, railway carriages, road accidents).

From a falling apple to a rollercoaster, find out why mechanical energy remains constant in the absence of friction, and what happens to it when friction comes into play.

Learn how to create a clear and easy-to-read graph, and then how to use it to read off values and understand how a physical phenomenon changes over time.

Why does a prism break white light into a rainbow, and how do astronomers determine the chemical composition of a star that is light-years away? This course explores the physics of dispersion and light spectra.

Learn how to identify physical quantities, express a value correctly along with its unit, and convert between units in the International System of Units. A fundamental course to get you off to a good start in physics.

An advanced course on understanding how light behaves as a wave: from Young’s slits to diffraction gratings, including the key formulas and pitfalls to avoid.

Understanding how speed and direction vary over time: from the definition of acceleration to its relationship with forces via Newton’s second law, illustrated with practical examples (a car, free fall, cornering).

From the laws of hydrostatics to Bernoulli’s theorem and Poiseuille’s law, this course provides you with the tools to understand and calculate the behaviour of liquids and gases in motion.

Discover the energy associated with the motion of objects: from the formula Ec = 1/2 * m * v^2 to the kinetic energy theorem, and finally understand why speed is so dangerous on the road.

Find out how an object’s height stores energy: learn how to calculate gravitational potential energy and understand how it is converted into kinetic energy, from ski jumps to freefall.

Find out what electric current is, learn how to measure it using an ammeter, and understand how it behaves in series and parallel circuits.

Discover how a simple coiled wire can counteract current fluctuations, store magnetic energy and govern the dynamics of RL circuits: the coil reveals its principles and pitfalls.

Find out why a steel ball and a feather fall at the same speed in a vacuum, and learn how to calculate the position, velocity and energy of an object in free fall.

Understand how lenses and mirrors form images, and learn how to construct these images step by step using simple light rays.

Learn to observe, ask questions, formulate a hypothesis and test it, just like a real scientist. A straightforward lesson to help you understand how reliable knowledge is built in physics.

Find out how the net force acting on an object determines its acceleration, using the fundamental principle of dynamics: F = m × a.

Find out how a simple electric current placed in a magnetic field can generate a force capable of turning a motor or making a loudspeaker vibrate.

Understanding how an electromagnetic field affects a moving charge: from the fundamental formula F = q(E + v × B) to practical applications such as the cyclotron, the velocity selector and the mass spectrometer.

Find out how voltage, current and resistance are related in an electrical circuit using Ohm’s law, a simple yet powerful formula used throughout the field of electricity.

Find out how modern physics explains colour, rainbows and interference patterns by treating light as an electromagnetic wave.

Find out why boats float and paper clips sink: a journey into the heart of Archimedes’ principle, from the bath experiment to real-world examples such as icebergs and submarines.

Find out how light travels in a straight line, why shadows are cast, and how fast light travels to reach us.

A powerful engine isn’t necessarily the one that does the most work, but the one that does it the fastest: find out how power links strength, speed and efficiency in the machines around you.