Ipv4 and Reaction Time
Investigation: Reaction Time Ruler Test
Date:
Name:
Partners Name(s):
Marks: /22 (Group) + /18 (Individual) = /40
Introduction:
Reaction time is the time between the application of a stimulus and the body’s response to the stimulus. Reaction time is quickest for young adults and gradually slows down with age. Reaction time can be improved with practice, up to a point, and it declines under conditions of fatigue and distractions.
INSTRUCTIONS:
PART 1 (Group):
The practical procedure and written work will be done in one lesson.
You will do this practical in pairs unless your teacher asks you to make a group of 3 in which case there are additional spaces added below for your data.
PART 2 (Individual):
All the questions at the end of this investigation will be done individually.
You may use calculators for all working out.
Extension work: For a more in depth investigation you can collect data from the entire class and work out exact reaction times using a formula shown on page3.
Part 1 AIM: To measure and compare the different average reaction times of learners in a Life Science class when a standard 30cm ruler is dropped and caught.
MATERIALS:
30 cm rulers (one ruler per group)
Calculator
METHOD:
1. Have your partner hold the ruler from the top. (As shown in fig 1. below)
2. Line up your fingers at the bottom end of the ruler. Do not touch the ruler!
3. Prepare to catch the ruler by bringing your fingers and thumb together when it drops.
4. Have your partner drop the ruler without warning. Don’t chase after the ruler as it falls.
5. Read your reaction time off the conversion Table 1 on page 3.
6. Record the reaction time that is closest to the distances given in the table to which you caught (i.e. if you caught the ruler at 6cm your reaction time will be 100ms as you are closest to 5cm as recorded in the table).
7. If ruler is missed completely record the
Date:
Name:
Partners Name(s):
Marks: /22 (Group) + /18 (Individual) = /40
Introduction:
Reaction time is the time between the application of a stimulus and the body’s response to the stimulus. Reaction time is quickest for young adults and gradually slows down with age. Reaction time can be improved with practice, up to a point, and it declines under conditions of fatigue and distractions.
INSTRUCTIONS:
PART 1 (Group):
The practical procedure and written work will be done in one lesson.
You will do this practical in pairs unless your teacher asks you to make a group of 3 in which case there are additional spaces added below for your data.
PART 2 (Individual):
All the questions at the end of this investigation will be done individually.
You may use calculators for all working out.
Extension work: For a more in depth investigation you can collect data from the entire class and work out exact reaction times using a formula shown on page3.
Part 1 AIM: To measure and compare the different average reaction times of learners in a Life Science class when a standard 30cm ruler is dropped and caught.
MATERIALS:
30 cm rulers (one ruler per group)
Calculator
METHOD:
1. Have your partner hold the ruler from the top. (As shown in fig 1. below)
2. Line up your fingers at the bottom end of the ruler. Do not touch the ruler!
3. Prepare to catch the ruler by bringing your fingers and thumb together when it drops.
4. Have your partner drop the ruler without warning. Don’t chase after the ruler as it falls.
5. Read your reaction time off the conversion Table 1 on page 3.
6. Record the reaction time that is closest to the distances given in the table to which you caught (i.e. if you caught the ruler at 6cm your reaction time will be 100ms as you are closest to 5cm as recorded in the table).
7. If ruler is missed completely record the