Stopping Distance - Thinking Distance
Physics: Edexcel IGCSE, topic 1.4.2
Factors Affecting Thinking Distance
Several factors affect thinking distance. Some examples are:

Tiredness
- Tired drivers will react more slowly in an emergency.

Distractions
- Distractions will cause a driver to react more slowly in an emergency.
- Examples include mobile phones or small children.

Drugs or alcohol
- Drivers under the influence of drugs or alcohol will react more slowly in an emergency.
Test yourself on Stopping Distance - Thinking Distance
Which of these are likely to increase your reaction time?