Reaction Time (GCSE Physics)

If a driver’s speed is 72 km/h and their reaction time is 0.75 s, what is their thinking distance? (72 km/h = 20 m/s)

Which of these is a direct consequence of reduced reaction time for drivers in traffic?

Which emergency safety recommendation is directly aimed at reducing drivers’ reaction times?

Which change would be expected to reduce variability (spread) in repeated reaction-time measurements for a single subject?

Which method provides the most controlled way to measure pure reaction time to a visual stimulus in the lab?

When measuring reaction time using a ruler drop test, which error would repeatedly shift all measurements by the same amount?

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?

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 action would reduce a driver’s reaction time (make them respond faster) while driving?

A typical average simple human reaction time to a visual stimulus is closest to which value?

In an experiment a subject’s reaction time is measured five times and values vary slightly. What is the main benefit of repeating the measurement several times?