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From hazard to halt

From hazard to halt

Roadside stopping-distance diagram showing a car moving from hazard detection through thinking distance and braking distance to rest

A stimulus is a change the driver detects, such as brake lights ahead. The response is beginning to press the brake pedal, and the delay between them is the reaction time.

Reaction times and stopping distances Lesson

  1. GCSE
  2. /Combined Science
  3. /Reaction times and stopping distances

Step-by-step lessons covering Edexcel GCSE Combined Science Reaction times and stopping distances for Foundation and Higher tier. Each lesson works through exam-style questions.

Lessons

Describing motion: scalars, vectors and motion graphsNewton's laws, weight and circular motionMomentumReaction times and stopping distances