Reactions Time

• What is reaction time?

  The time it takes to respond to a stimulus
• What are the four steps to investigate reaction time?

  1. Hold a ruler between thumb and forefinger
  2. Drop the ruler and record the distance it falls
  3. Repeat the test and calculate the mean distance
  4. Investigate the effect of a factor on reaction time
• What should you do after dropping the ruler in the reaction time test?

  Record the distance it falls before caught
• How can you investigate the effect of a factor on reaction time?

  Give a caffeinated drink and repeat the test
• What is the mean distance in the reaction time test?

  The average distance the ruler fell
• What does a further fall of the ruler indicate about reaction time?

  The slower the reaction time
• What is the initial position of the ruler in the reaction time test?

  Between the thumb and forefinger
• If a person drinks a caffeinated drink before the test, what should you do next?

  Wait ten minutes and repeat the experiment
• What is the maximum distance mentioned for the ruler in the reaction time test?

  30 cm
• What is the minimum distance mentioned for the ruler in the reaction time test?

  0 cm
• What is one of the recorded distances in the reaction time test?

  14 cm