S3 Physics hub

Overview

S3 Physics is National 5 level work. Everything you learn here carries straight on into National 5.

A weekly routine that works
  • 1) Go over the lesson on the topic page or in the slides.
  • 2) Do the tasks, then check your answers.
  • 3) Try past-paper questions, then fix what you got wrong.
  • Stuck? Write down what you know, the equation and the units before you use the calculator.

My progress

Topics

Notes, tasks and revision for each topic.

Space Gravity, orbits and the Universe. Slides now, topic page soon. Electricity 1 Voltage, current, resistance and circuits. Electricity 2 Electronics practical: build and test circuits. Electricity 3 Power and particles: power, fuses, AC and DC, Q = It. Nuclear Radiation Types, background radiation, uses and protection. Coming soon.

Practise

Real National 5 past-paper questions. S3 work is National 5 level, so these fit.

ExternalDELTA by Mr Taylor (N5) RecommendedPast-paper multiple choice, 2026 included. It marks itself. Pick a topic, like Electricity. Past Paper Finder (N5) RecommendedEvery past-paper question by topic, 2026 included. By Mr Davie, updated by Mr White. Large PDF (24 MB).

Extra help

Slides and videos to catch up or go over a lesson.

Lesson slides Every class deck as a PDF. ExternalYouTube playlists Catch-up and walkthrough videos. ExternalMrs Physics Extra explanations and practice.

Sources & credits: the Past Paper Finder is compiled by Mr Davie (September 2026 update by Mr White); DELTA is by Mr Taylor; past-paper questions and marking instructions © Qualifications Scotland (SQA). The banner is AI-generated artwork. Full site credits are on the credits page. R Stewart - September 2026