This deep dive covers Mastering Unit Conversions within Compound Measures for GCSE Mathematics. Revise Compound Measures in Number for GCSE Mathematics with 12 exam-style questions and 22 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 4 of 8 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 4 of 8
Practice
12 questions
Recall
22 flashcards
Mastering Unit Conversions
Speed Conversions
- m/s to km/h: multiply by 3.6
- km/h to m/s: divide by 3.6
- m/s to mph: multiply by 2.24
- mph to m/s: divide by 2.24
Common Unit Conversions
| From | To | Method |
|---|---|---|
| g/cm³ | kg/m³ | × 1000 |
| kg/m³ | g/cm³ | ÷ 1000 |
| cm³ | m³ | ÷ 1,000,000 |
| cm² | m² | ÷ 10,000 |
Keep building this topic
Read this section alongside the surrounding pages in Compound Measures. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Compound Measures
Which formula correctly gives speed in terms of distance and time?
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.
Quick Recall Flashcards
12 questions on Compound Measures — practise free
Instant marking, adaptive difficulty, and 22 spaced repetition flashcards. Free until your GCSEs.
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