Topic 5 Reaction Times

Question 1

What is the typical reaction time between

Answer 1

0.2 and 0.9 seconds

Question 2

What can reaction time be affected by

Answer 2

Tiredness drugs or alcohol also distractions

Question 3

What is the computer based test for reactiontimes

Answer 3

Clicking mouse when screen changes colour

Question 4

Ruler drop test

Answer 4

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 

Question 5

Why can you calculate how long the ruler falls for

Answer 5

Because acceleration due to gravity is constant 9. 8 m/s squared

Question 6

What should be done to get accurate results

Answer 6

Take repeat and calculate mean