Required Practical

• What is the purpose of reaction time in the context described?

  For the brain to detect a stimulus
• What is the next step after the brain detects a stimulus?

  Send an impulse to the muscles
• What do muscles do after receiving an impulse?

  Respond
• In the described experiment, what hand should you use?

  Weak hand
• What posture should the person being tested maintain in the experiment?

  Upright
• Where should the participant look during the experiment?

  Across the room
• Where should you place your forearm in this experiment?

  Across the table
• Where should your hand be in relation to the table?

  Overhanging the edge
• What tool does your partner hold vertically?

  A ruler
• Where on the ruler should you place your fingers?

  Bottom end
• Which fingers should be used to hold the ruler?

  Thumb and first finger
• What action will your partner perform without telling you?

  Drop the ruler
• What action should you perform as quickly as possible?

  Catch the ruler
• What should you look at on the ruler after catching it?

  Number level with the top of thumb
• What should you do with the number you read from the ruler?

  Record in a table
• What variables should be controlled in this reaction time experiment?

  • Height ruler is dropped from
  • Take measurement from the same point
  • Use same hand each time
• Why is it important to control the height the ruler is dropped from?

  To ensure consistent reaction time
• Why should measurements be taken from the same point?

  To ensure accurate data collection
• Why should the same hand be used each time?

  To maintain consistency
• What is a better method for measuring reaction time?

  Using a computer and clicking a mouse
• What are the advantages of using a computer to measure reaction time?

  Time is more precise and accurate