Question

How to calculate your reaction time with a ruler

Answer 1

What you need to do:

Sit or stand with your arm stretched out in front of you. Hold out your thumb and your first finger.
Your partner needs to hold the ruler from the 30cm end and position the 0cm end just above the gap between your outstretched thumb and first finger. Make sure you aren’t touching the ruler!
Without giving you a warning, your partner needs to drop the ruler.
Catch the ruler, as quickly as you can, using just your thumb and finger. If you miss, make sure you watch out for your face or toes! And then have another go.
Record the point at which you caught the ruler, to the nearest cm. Measure from the bottom of your thumb.
You can use this table to convert the measurement on the ruler into your reaction time in seconds. The less time it takes you to catch the ruler, the faster your reaction.

Answer 2

Record the point at which you caught the ruler, to the nearest cm. Measure from the bottom of your thumb. You can use this table to convert the measurement on the ruler into your reaction time in seconds. The less time it takes you to catch the ruler, the faster your reaction.