This introduction covers The Hidden Danger of Speed within Stopping Distances for GCSE Physics. Revise Stopping Distances in Forces for GCSE Physics with 13 exam-style questions and 5 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 1 of 12 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 12
Practice
13 questions
Recall
5 flashcards
📖 The Hidden Danger of Speed
At 30 mph, a car needs about 23 metres to stop. At 60 mph — just double the speed — it needs about 73 metres! That's more than THREE times the distance. Why? Because thinking distance doubles (you travel twice as far during reaction time), AND braking distance QUADRUPLES (kinetic energy is proportional to v²). This is why speed limits exist near schools — the physics of stopping makes high speeds deadly.