S3 Physics landing page

Overview

In S3 Physics we explore three big ideas that shape the modern world: Space, Electricity (including practical electronics), and Nuclear Radiation.

You’ll see how the same rules can explain everything from a satellite staying in orbit, to an LED lighting safely in a circuit, to invisible radiation that can both save lives and require careful protection.

Physics is the story of turning “How is that possible?” into “Oh… that’s how it works.” By the end of S3, you’ll be reading the hidden language of the universe — with diagrams, measurements, and real circuits you can build and test.

✅ What you’ll learn this year (tap to open)3 big units
  • Space: gravity, motion in space, orbits, and how we study the universe.
  • Electricity (+ Practical Electronics): core circuit rules, components, building/testing, and safe working.
  • Nuclear Radiation: types of radiation, sources, uses, and safety/measurement ideas.

Topics

Pick your unit. “Coming soon” tiles are being built.

🌌 Space ⏳ Coming soon

Gravity • Orbits • The Universe

⚡ Electricity 1 ✅ Core

Voltage • Current • Resistance • Circuit rules

💡 Electricity 2 — Electronics ✅ Core 🛠 Practical

Components • Building circuits • Testing • Safety

🔌 Electricity 3 — Power & Particles ⏳ Coming soon

Power • Fuses • AC/DC • Q=It • Electric fields

☢️ Nuclear Radiation ⏳ Coming soon

Types • Background radiation • Uses • Protection

Progress

This saves on the device (great for iPads).

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Tip: if you’re stuck, open your unit and look for one thing to fix: a definition, a diagram, or one calculation you can repeat confidently.