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What's covered, in curriculum order. Titles and summaries are free to browse; the full section, with worked examples, unlocks with a free account.
1. Electric Circuits: Current, Voltage and Types
What current and voltage are, and the difference between series and parallel circuits.
2. Electrical Power and Energy
What an appliance's power rating means, and how electrical energy is transferred.
3. Generating Electricity
How the UK generates electricity, and renewable versus non-renewable sources.
4. Electromagnets
How a current-carrying wire can create a magnetic field, and how an electromagnet works.
6. Wave Characteristics
Amplitude, wavelength, and frequency, the three properties that describe a wave.
7. Sound & the Electromagnetic Spectrum
Sound as a wave that needs a medium, and the seven regions of the electromagnetic spectrum.
8. Nuclear Radiation
The three types of nuclear radiation, and how to stay safe around them.
9. Speed and Acceleration
Calculating speed from distance and time, and what acceleration means.
10. Forces and Newton's Laws
Balanced and unbalanced forces, and what happens to an object's motion in each case.
12. Satellites & the Solar System
What satellites are used for, and the structure of our solar system.
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