please answer questions precisely
they will be attached in the word document below
Access the University of Colorado’s PhET sound and waves on a string simulations at
https://phet.colorado.edu/en/simulation/legacy/sound
and at https://phet.colorado.edu/en/simulation/wave-on-a-string
Part I: Sound
PROCEDURE:
1.) Use the Listen to a Single Source tab in Sound Waves to start your investigation of
sound. Turn on the Audio Enabled so you can hear the sound.
• When you change the frequency, how does the sound change? How does
the visual model change?
• How does changing the amplitude affect the sound and its model?
2.) Sound is produced when something vibrates; this movement causes disturbances
in the surrounding air pressure. Investigate how the speaker cone moves to
produce different sounds. Then, explain the relationships between the movement
of the speaker cone and the sound that is made; include drawings to support your
explanation.
3.) Use the tools on the Measure tab to find the speed of sound in air.
• Make a data table that demonstrates you have a good experiment and
show sample calculations.
• How do your results compare to information that is published? (Include a
citation)
4.) How could you find the wave length of a sound? Test your idea with several
different sounds. Check to see if the results for wavelength make sense. (Include a
citation)
5.) Describe how you might use the simulation tools to find the period of a wave
without using the frequency information.
• Test your idea with a variety of waves. Check your method by calculating
the period using the frequency. Show data and calculations for several
trials. Make corrections to the original plan as necessary.
6.) Describe how you would find the frequency of a wave if the frequency slider did
not have a number display.
• Test your idea with a variety of waves. Show data and calculations for
several trials. Make corrections to the original plan as necessary.
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