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Per means divide

Per means divide

Two formula triangles showing distance-speed-time and mass-density-volume with units The word "per" means divide. So average speed is distance per time, and density is mass per volume.

Speed and Density Lesson

  1. GCSE
  2. /Maths
  3. /Speed and Density

Step-by-step lessons covering AQA GCSE Maths Speed and Density for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1, Paper 2 and Paper 3 format. Build fluency with number, ratio and algebra first, since geometry, probability and statistics topics rely on them, and leave extra time nearer the exam for Higher-tier problem-solving and multi-step reasoning questions.

Lessons