How the universe works — from atoms to galaxies.
Physics is the big one. It explains why things fall, how light works, what electricity actually is, and how the entire universe holds together. Every bit of technology you use exists because someone understood the physics behind it. It's challenging, but it's also properly cool.
If you could fold a piece of paper 42 times, it would reach the moon.
Light from the Sun takes about 8 minutes to reach Earth. You're always seeing the Sun in the past.
A teaspoon of a neutron star would weigh about 6 billion tonnes.
GPS satellites have to account for Einstein's relativity or your maps would drift by 10 km a day.
50 topics across 8 units — all mapped to the AQA GCSE specification.
Energy stores, transfers, kinetic/gravitational PE, specific heat capacity, power and efficiency.
Circuits, current, voltage, resistance, V=IR, P=IV, series/parallel, national grid and static.
Density, states of matter, internal energy, specific latent heat and gas pressure.
Atomic models, radioactive decay (alpha/beta/gamma), half-life, fission and fusion.
Scalars/vectors, gravity, resultant forces, Newton's laws, momentum, stopping distances and pressure.
Transverse/longitudinal waves, reflection, refraction, sound, EM spectrum and lenses.
Magnets, magnetic fields, electromagnets, motor effect, Fleming's rule, induction and transformers.
Solar system, life cycle of stars, orbital motion, red shift and the Big Bang.
Doesn't just give you the answer — walks you through it step by step so you can do it yourself in the exam.
Stuck on a homework problem? Confused by a concept? Ask in your own words — no such thing as a stupid question.
See exactly which topics you've nailed and which need more work. XP, streaks and mastery scores for every topic.
Practice with questions modelled on real GCSE papers. Marks, hints and model answers included.
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