Required Practical: Reaction Time (AQA GCSE Biology): Flashcards
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Practise the cards
13 cards from this deck
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Practise the cards
13 cards from this deck
Aim of reaction time practical
Aim of reaction time practical
Measure & investigate factors affecting human reaction time
Ruler length needed for reaction time practical
Ruler length needed for reaction time practical
30 cm
Starting position of 0 cm mark on ruler
Starting position of 0 cm mark on ruler
In line with top of subject's thumb and forefinger
What tester does during reaction time test
What tester does during reaction time test
Releases ruler without warning
What is recorded in reaction time practical
What is recorded in reaction time practical
Distance in cm where ruler was caught
Why repeat the test several times
Why repeat the test several times
To calculate average distance ruler fell
What is ruler distance converted to?
What is ruler distance converted to?
Reaction time
Example of distraction to test reaction time
Example of distraction to test reaction time
Counting backward (mental task)
Dependent variable in reaction time practical
Dependent variable in reaction time practical
Reaction time (calculated from ruler drop distance)
Control variables in reaction time practical
Control variables in reaction time practical
Same ruler used, consistent height ruler is held
What to determine in conclusion
What to determine in conclusion
Which factors had significant effect on reaction time
Real-life situation needing quick reactions
Real-life situation needing quick reactions
Driving
Suggested improvement for more precise measurement
Suggested improvement for more precise measurement
Use digital timer