PrepWisePrepWiseMathematics
NumberMedium Exam FrequencyAQAEdexcelOCRWJEC

Compound Measures

Revise Compound Measures in Number for GCSE Mathematics with 12 exam-style questions and 22 flashcards. This topic appears regularly enough that it should be part of a solid GCSE revision cycle.

Study this topic

1

The Speed Camera Scandal

Introduction2

The Three Essential Compound Measures

Key Facts3

Formula Triangles - Your Memory Aids

Diagram4

Mastering Unit Conversions

Deep Dive5

Worked Examples

Notes6

Exam Success Strategies

Exam Tips7

Real-World Applications

Diagram

Sample Flashcards

Convert 25 m/s to km/h
Multiply by 3.6 25 × 3.6 = 90 km/h Check: 25 m/s means 25 metres per second 25 × 3600 ÷ 1000 = 90 km/h
Convert 72 km/h to m/s
Divide by 3.6 72 ÷ 3.6 = 20 m/s Check: 72 km/h means 72000 m per 3600 s 72000 ÷ 3600 = 20 m/s

Sample Questions

Which formula correctly gives speed in terms of distance and time?

  • A. Speed = Distance × Time
  • B. Speed = Time ÷ Distance
  • C. Speed = Distance ÷ Time
  • D. Speed = Distance + Time
1 markfoundation

A car travels 80 km at 40 km/h and then 80 km at 80 km/h. Explain why the average speed for the whole journey is NOT 60 km/h.

2 marksstandard

12

exam-style questions

22

revision flashcards

Ready to revise Compound Measures?

Get personalised daily study plans, adaptive quizzes, and spaced repetition flashcards.

Join Alpha

Previous topic

Percentage Problems

Next topic

Growth & Decay