Topic 5 Reaction Times Flashcards
What is the typical reaction time between
0.2 and 0.9 seconds
What can reaction time be affected by
Tiredness drugs or alcohol also distractions
What is the computer based test for reactiontimes
Clicking mouse when screen changes colour
Ruler drop test
Sit with arm resting on table get someone else to hold a ruler so it hangs between the thumb and forefinger lined up with zero may need the person to be at eye-level with the ruler
With no warning ruler should to be dropped close thumb and finger to catch as quickly as possible
Measure point where the ruler is caught and how far the ruler droped in the time taken for you to react
The longer the distance the longer the reaction time 
Why can you calculate how long the ruler falls for
Because acceleration due to gravity is constant 9. 8 m/s squared
What should be done to get accurate results
Take repeat and calculate mean