Reaction Time - GCSE Physics Definition

Reaction time is the amount of time it takes for someone to respond to a stimulus, like a sound or sight. It's important because it affects how quickly you can react to things happening around you, such as braking when you see a red light while driving. A shorter reaction time means you can respond faster. Factors like age, concentration, and whether you're tired can affect your reaction time. Understanding reaction time helps us learn about how humans interact with their environment and is important in activities ranging from sports to everyday tasks.