This reaction time experiment required visual information (the movement of Use inches in your distance measurement, but you must change g to equal
In the formulas, t = time (in seconds) y = distance (in cm) g = 980Ĭm/sec 2 (acceleration due to gravity). Plug in the distance (in either centimeters or inches) that the rulerįell into Formula 2 - this will give you the reaction time. Get the amount of time it takes an object to fall aĬertain distance.that's what you want to find out. By rearranging Formula 1 into Formula 2, you can If you want to be more precise with your calculations, use the followingįormula 1 provides you with the distance an object will fall inĪ given amount of time. Reaction time is equal to 0.20 seconds (200 ms). Here is a table to convert the distance on the ruler to reaction time.įor example, if you caught the ruler at the 8 inch mark, then your Ruler within the 5 second "drop-zone" so the other person cannot guess Test the same person 3 to 5 times (vary the time of dropping the Ruler (you can convert the distance into reaction time with the chartīelow). Record the level (inches or centimeters) at which they catch the They are supposed to catch the ruler as fast as they can after it isĭropped. That you will drop the ruler sometime within the next 5 seconds and that (however, they should not be touching the ruler). Hand at the bottom of the ruler and have them ready to grab the ruler Get a ruler (or a yardstick or candy bar). Rather, this activity is designed to measure your Unlike the other activities on this reflex page, this project does not An Integrated Approach, New York: John Wiley and Sons, If you areĪwake for 16 hours each day, then you blink approximately 14,400Įach day! (Source: Schiffman, H.R., Sensation and People typically blink about 15 times per minute.