Template - Experiment #1-1
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School
College of Lake County *
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Course
MECHANICS
Subject
Mathematics
Date
Apr 3, 2024
Type
docx
Pages
7
Uploaded by DeanHorsePerson1067
Science and Mathematics Department
Columbia College Chicago
Course: Science and Technology in the Arts
Experiment # 1.1
Measuring your voice using the Oscilloscope
Objective of the Experiment:
Learning how to measure sound using an oscilloscope.
Measure the amplitude, period and frequency of different sounds
Research Question: Is there a relationship between the Pitch of the sound you produce (low and high pitch) and the period of the sound you measure when producing these different sounds?
Variables
INDEPENDENT VARIABLE: In this experiment there is one independent variable (the one YOU can control) and it is the Pitch of the sound you produce.
DEPENDENT VARIBLE: in this experiment the dependent variable will be the Amplitude, Period T and Frequency f, measured using the oscilloscope.
PARAMETERS: In this experiment the microphone of your computer and the Virtual Oscilloscope are the parameters.
Hypothesis:
The hypothesis is a statement in which after you observed a phenomenon and made your research provide a Potential Answer
to the solution. I mentioned Potential Answer because it is what YOU think will happen. Then we implement an experiment to see if the data of the experiment SUPPORT or REJECT what you were thinking will happen.
Updated 1/13/2021
The hypothesis needs to be a CLEAR statement that describes the relationship between the Independent and the Dependent(s) variables, answering the research question from where you started the investigation.
If the pitch were Increase than the period will also as well
Procedure
Open the Virtual Oscilloscope
Check that the Input is set to Live Input as shown in the picture below
Produce a continue sound at LOW PITCH, see that you have a clear image of your low pitch sound, and freeze the input by click (when you are producing the sound) on the Freeze Live Input button. This action will freeze the image of your sound on the screen as shown in the picture below.
Updated 1/13/2021
Using the Second/div you will change the horizontal axis of the oscilloscope (x axis) that represents the time per division to see between 1 full cycle and two,(in the picture above we can see at least 3 full cycles) as shown the picture below.
Updated 1/13/2021
T
T
T
2 ms
T
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Part I:
Sample your LOW PITCH voice following the instructions above an place the image in the place holder below
From the control panel write the values of the horizontal axis (that measures the time) Seconds / division and the vertical axis (that measures de intensity) Volt / division
Seconds / div: 4 m/s
Volts / div: 5
From the image of the full cycle, write how many divisions takes to complete a full circle
Divisions / Cycle: 2
Calculate the Period of the LOW PITCH sound wave you produced
Period T
=
Division
2
∗
4
Division
=
2
∗
4
=
8
ms
Calculate the Frequency f of the LOW PITCH sound wave you produced
Frequency f
=
1
2
=
1
4
=
1
8
=
125
Hz
Updated 1/13/2021
Part II:
Sample your HIGH PITCH voice following the instructions above an place the image in the place holder below
From the control panel write the values of the horizontal axis (that measures the time) Seconds / division and the vertical axis (that measures de intensity) Volt / division
Seconds / div: 50 m/s
Volts / div: 2v
From the image of the full cycle, write how many divisions takes to complete a full cycle
Divisions / Cycle: 8
Calculate the Period of the HIGH PITCH sound wave you produced
Period T
=
Division
8
∗
50
Division
=
8
∗
50
=
400
ms
Calculate the Frequency of the HIGH PITCH sound wave you produced
Updated 1/13/2021
Frequency f
=
1
8
=
1
50
=
1
/
400
=
2.5
Hz
Data Analysis Describe how the data describes the studied phenomenon and the relations between the variables
The Data Analysis is an essential part of the experiment. It is when you observe what you did and explain what happened using the data you collected. The data analysis is presented in two parts: 1) the one that explains what happened using the data collected and 2) a final statement that expresses the relation between the two variables. Below is an example of the data analysis of this experiment #1A
[Observation and analysis
]: One thing I noticed is that there was a relationship between the Periods and Frequencys [Final Statement]
: there was a relationship between the Periods and Frequencys Conclusions:
Write the conclusion of your experiment based on your hypothesis and the data collected
The conclusion is the place where you assess your hypothesis in comparison with your findings and declare that the data collected (your results) support or rejects your hypothesis. It is essential to understand that a hypothesis can not be right or wrong. A hypothesis is what you think will happen (informed by your previous research), and the data you collect can only support what you think about the phenomenon or reject it.
Conclusion:
Given the research question:
Is there a relationship between the Pitch of the sound you produce (low and high pitch) and the period of the sound you measure when producing these different sounds?
And the hypothesis presented
If the pitch were to Increase than the period will also as well
The data analysis shows that there was a relationship between the Periods and Frequencys Updated 1/13/2021
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Then the data collected in this experiment support
the hypothesis.
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1)
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2)
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3)
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4)
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Updated 1/13/2021