UNIT OVERVIEW

This revision unit helps you prepare for the NSC Physical Sciences examinations. It covers all Grade 12 topics from both Paper 1 (Physics) and Paper 2 (Chemistry).

What you will do in this unit:

• Review all Grade 12 concepts from Terms 1–3
• Learn the key formulas, laws, and definitions you need
• Practise with worked examples at different difficulty levels
• Identify common mistakes that cost marks in exams
• Build exam technique with NSC-style questions

Why these topics matter in real life:

• Vehicle safety: Momentum and impulse explain why airbags and crumple zones reduce injuries
• Medical imaging: The Doppler effect allows doctors to measure blood flow using ultrasound
• Farming: Understanding fertilisers and the Haber process helps grow more food sustainably
• Energy technology: The photoelectric effect is the basis for solar panels; electrochemistry powers batteries
• Industry: Chemical equilibrium guides the production of ammonia and sulphuric acid

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