Reaction Time (GCSE Physics)

A subject’s measured reaction times (s) to a light are 0.21, 0.24, 0.20, 0.23, 0.22. What is the mean reaction time?

In a simple driving scenario, which calculation gives the thinking distance (in metres) when speed is in m/s and reaction time in s?

Which behaviour will most likely increase reaction time in an emergency driving situation?

A novice driver has an average reaction time of 0.6 s and an experienced driver 0.45 s. What percent faster (shorter) is the experienced driver’s reaction time compared to the novice?

Which of these best describes the difference between reaction time and response time?

A sports coach wants to test athletes’ reaction time to sound. Which change would make the test measure auditory reaction time rather than visual?

Which device is most commonly used to record the time a subject takes to react in a timed reaction-time test?

Why does alcohol generally increase (worsen) reaction time?

Which of the following best represents a typical minimum simple reaction time to a sound for a young, alert person?

If a driver’s reaction time is 0.6 s and the car speed is 20 m/s, what is the thinking distance (distance travelled during reaction)?

A traffic safety campaign states: “Cut your reaction time and you reduce stopping distance.” Which part of stopping distance is directly reduced by a shorter reaction time?