This introduction covers The Speed Camera Scandal 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 1 of 7 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 1 of 7
Practice
12 questions
Recall
22 flashcards
The Speed Camera Scandal
A speed camera on the motorway flashes at a car traveling at what appears to be exactly 70 mph. But when the case goes to court, the driver's lawyer argues that the camera measured the car traveling 50 metres in just 2.5 seconds - which actually works out to 44.7 mph, well under the limit! Meanwhile, engineers designing a new bridge need to calculate if the steel beams can handle the pressure from the water below, and a space mission depends on calculating fuel density to ensure the rocket has enough power to escape Earth's gravity. From speed cameras to space rockets, compound measures combine two or more basic measurements to tell us crucial information about our world.