Lesson 3 - Reaction Time Practical

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4 Terms

1
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What is the method for the reaction time required practical?

  1. Student A sits with their arm resting on the edge of a table

  2. Student B holds the ruler so that 0 cm on the ruler is level with the top of the thumb of Student A

  3. Student B lets go of the ruler without warning.

  4. Student A catches the metre rule as quickly as possible

  5. Record the number on the ruler where Student A caught it.

  6. Repeat 9 more times

  7. Repeat with Student B now catching the ruler

  8. Both students repeat the experiment with their other hand

2
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What are some things to try and keep the same?

  • Same starting position of the ruler

  • Same distance between the catcher’s thumb and fingers

  • Support your arm on the bench the same way

  • Use the same hand each time

  • Drop the ruler without warning

3
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What is the starting position of the ruler?

aligned 0cm with the top of the catches thumb

4
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What are some other control variables for tests similar to this?

  • age

  • sex

  • BMI

  • amount of sleep