YOUR TURN TO INVESTIGATE 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/s ) Performing hands-on lab activities is another way to learn and discover how science concepts apply to our everyday lives. However, it can also be dangerous if you do not take steps to perform these activities safely. We have made every effort to ensure that these activities are safe to perform in the presence of an adult (ex. teacher or parent). It is important for you to use good judgement and exercise every precaution in order to avoid accidents that may result in injury If you have any questions about the materials or procedure of a lab activity, you are to contact either your teacher or the Science Department , prior to beginning any lab activity.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 Skills and Formatting 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). Step 3 Once your planned procedure has been approved by your teacher and you have completed your test(s), communicate your results in a lab report. Refer to the "Writing a Lab Report" page of the Scientific Skills and Formatting module to ensure that you follow the proper format. Note on Writing In Science All information and relevant data are to be included in a logically sequenced manner. In your writing, it is important to use appropriate writing style, tone, and scientific terminology. Conduct your research using reliable, peer­reviewed and industry sources and ensure that sources listed in your reference list are directly related to information presented in your paper. Use the appropriate referencing style for science to cite your sources. For more information, see the page titled “References” in the Scientific Skills and Formatting module of the Introduction unit in your course.

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Unit Assignment: Stimulus Response Lab Activity
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YOUR TURN TO INVESTIGATE
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/s )2

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Performing hands-on lab activities is another way to learn
and discover how science concepts apply to our everyday
lives. However, it can also be dangerous if you do not take
steps to perform these activities safely. We have made every
effort to ensure that these activities are safe to perform in
the presence of an adult (ex. teacher or parent). It is
important for you to use good judgement and exercise every
precaution in order to avoid accidents that may result in
injury.
If you have any questions about the materials or procedure
of a lab activity, you are to contact either your teacher or the
Science Department , prior to beginning any lab activity

4. Assignment Help | 100% Plagiarism Free | Success Assured | Email Now to get quote – admin@panhelp.com
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 Skills
and Formatting 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)
Purpose:
The purpose of this experiment is to investigate the stimulus response
feedback loop. This is done by studying the reaction rate of three different
stimuli: visual, auditory and tactile.
Hypothesis:
The fastest response is the visual response.
Background:
Feedback control is a mechanism to control the response of our body to
any stimulus. Feedback loops can be divided into two main types: positive
and negative. In a positive feedback the increasing of the concentration of
a stimulus will lead to an increase in the rate of the response while in a
negative feedback, increasing the concentration of a stimulus will lead to a
decrease in the rate of the response. The system responsible on controlling
most of these mechanisms is the nervous system. The rate of the response
to a certain stimulus depends on the type of stimulus as an example of
such stimulus is the visual stimulus. This change in the rate of the response
will depend on the distance traveled by the signal and the type of
communication (chemical or electrical) between the synapses.
In this experiment, the rate of response of visual, auditory and tactile
stimuli will be compared by using the monitoring the rate of reaction. The
time taking will be calculated using the following formula:
t=
2 𝑑
𝑔

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Step 3
Once your planned procedure has been
approved by your teacher and you have
completed your test(s), communicate your
results in a lab report. Refer to the "Writing
a Lab Report" page of the Scientific Skills
and Formatting module to ensure that you
follow the proper format.