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1.1 Units and quantities
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Physical quantities and SI units

Physical quantities and SI units

A physical quantity is a measurable property of an object or system. A complete measurement contains a number and a unit, so 121212 is incomplete but 12 N12 \, \text{N}12N states a force.

1.1 Units and quantities Lesson

  1. GCSE
  2. /Physics
  3. /1.1 Units and quantities

Step-by-step lessons on Edexcel GCSE Physics 1.1 Units and quantities, covering 1.1.2 Unit prefixes, conversions, significant figures and standard form. Each one builds up to exam-style questions. Master the required practical work and core equations early, since both papers can draw on content and maths skills from across the whole specification.

Lessons