MathsYears 8–9Ratio & Proportion

Speed, distance, time and density

Calculate speed, distance, time, density and pressure using compound measures

What you'll learn

  1. 1

    Imagine you're racing your friend on bikes. Speed tells you how fast you go — it's distance divided by time! 🚴

  2. 2

    What is speed?

  3. 3

    Drag the car to show a speed of 60 km/h — that's 60 km in 1 hour. 🚗

  4. 4

    You run 12 km in 2 hours. What is your speed? 🏃

  5. 5

    A car travels 100 km in 2 hours. What is its speed? 🚙

  6. 6

    Now try density! Imagine a block of cheese that weighs 200 g and takes up 100 cm³. Density = mass ÷ volume. 🧀

  7. 7

    A rock has mass 300 g and volume 150 cm³. What is its density? 🪨

Practise Speed, distance, time and density with Whizlo

Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 12–14. Aligned to the UK National Curriculum.