PHYSICS: Reaction Time Lab
Have you ever wondered what your reaction time is? In the blank write down what you think your reaction time is: __________.
Using the equation d=1/2at^{2} see if your group can come up with a method for actually measuring a person’s reaction time. Write this method as a list of procedures that are numbered 1 to whatever. Put these procedures on a separate sheet of paper titled “Procedures for determining a person’s reaction time”. Of all of the procedures you have written there is one procedure that is the most important one. Write this procedure in bold type and underline it as well.
Once you have come up with a set of procedures, you should also know what single quantity that you will need to measure and what single tool you will need to measure it, and exactly how this tool will be used. Put this information on a separate sheet of paper titled “Quantity to be measured, the tool needed to measure a person’s reaction time”
If your procedures are correctly written you should know exactly what data to collect and exactly how to collect that data. On a third sheet of paper make a data table for each member of your group. Title this page “Data Tables”.
Using the data you collected you will be able to calculate your reaction time. Write out these calculations on a fourth page titled “Calculations of Reaction Time”. The student whose data are being used must be indicated. The 3column method must be used for each student’s calculation.
Provide a summary on the ‘Summary’ page. This summary must include the original prediction each student wrote down on the top of this page. So, a typical summary should start with a brief description of what your group did and how you did it. Then, each summary must have a comment that compares the predicted reaction time and the actual calculated reaction time. Finally, each member of your group must write a paragraph telling what they learned as a result of doing this lab.
The lab report for this reaction time lab must be typed. The rubric should be used as a guide to your report writing.
Rubric for the reaction time lab 

Task 
Points
earned and comments 
Each member of your group stays on task and performs the
duties appropriate to their position in the group according to the card
drawn. (10) 

Your group keeps to itself and does not interact nor
distract another group. In addition
your group does not enable another group to be offtask. (10) 

Each member of your group’s Preliminary Predictions are realistic and written out according to procedure. (10) 

A useable and correct set of procedures is written,
including: the most important procedure, the equation that is used and the
use of the 3column method. (10) 

The correct quantity to be measured and the correct tool is
specified. The group demonstrates
that they know how to use the tool and how to measure the quantity. (10) 

Data tables are clearly and correctly drawn for each member of the
group and the correct data in the correct SI units are entered. (10) 

Calculations are completely and correctly done in the 3column method
and each student’s reaction time is clearly indicated. (10) 

A clearly and properly written summary is provided with an appropriate
comment from each member of the group clearly indicated. (10) 

EXTRA CREDIT
Since we are doing a lab using the equation for calculating the time it takes for and object to fall, I thought it might be interesting to use that same equation to calculate your ‘hang’ time. For 15 points extra credit do the following: