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Why units matter

Why units matter

Electricity unit map showing five relationship panels linking current, charge, time, voltage, energy, resistance, and power

Units Lesson

  1. IGCSE
  2. /Physics
  3. /Units

Step-by-step lessons on Edexcel IGCSE Physics Units. Each one builds up to exam-style questions. Build a strong foundation in mechanics and electricity before tackling the more mathematically demanding astrophysics and nuclear topics.

Lessons