Experiment
Feedback loops are used by the body to respond to a stimulus. In this lab activity, you will plan an investigation into the stimulus response feedback loop.
One method would be to measure the reaction time of your partner when dropping a ruler above their open hand. Be sure to plan an investigation that is simple and will compare visual (ex. eyes open/ closed), auditory (ex. sound clue), and tactile stimuli.
Reaction time can be calculated using the following formula:
t = sqrt (2d/g)
where:
t = reaction time
d = distance
g = acceleration due to gravity (9.8 m/s2)
DROPBOX: Stimulus Response Lab – Procedure
Step 1
Upload the question you propose to test in this lab activity to the Stimulus – Response Lab – Procedure Dropbox. Be sure to identify the dependent and independent variables and include and any controls to be used. Once you have received feedback and approval from your teacher, proceed to step 2.
Step 2
Refer back to the “Planning an Investigation” page in the Scientific Investigation Skills module to help you plan your test(s).
Upload your planned procedure to the Stimulus – Response Lab – Procedure Dropbox to be reviewed and approved by your teacher before proceeding with your test(s).
ScholarMatic: Explanation & Answer
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