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Biology

GCSE · AQA

QuestionsFlashcards

Communicable Diseases
Monoclonal Antibodies
- Producing Monoclonal Antibodies
  6
- Uses of Monoclonal Antibodies
  7
Plant Disease
- Detection and Identification of Plant Diseases
  6
- Plant Defence Responses
  6

Required Practical: Reaction Time Flashcards

All 5 cards in this deck

In the ruler drop test for reaction time, what is the dependent variable?: The distance the ruler falls before it is caught (converted to reaction time).
Give three control variables for a ruler drop reaction time investigation.: Same starting position of the ruler (0 cm at the hand), same hand used, same person dropping/catching, arm rested on the table.
Name two ways of improving the ruler drop method for measuring reaction time.: Repeat and calculate a mean (ignoring anomalies), and use the same starting position of the ruler each time.
True or false? A shorter ruler-drop catch distance means a faster reaction time.: True. The ruler falls less far in a shorter time, so a smaller distance means a quicker reaction.
Name two factors a student could investigate for their effect on human reaction time.: Caffeine (drink) and background noise/distraction; also practice or time of day.