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STATIONARY WAVES (“Physics Tutorial: Formation of Standing Waves.” The…
STATIONARY WAVES
“Physics Tutorial: Formation of Standing Waves.” The Physics Classroom, www.physicsclassroom.com/class/waves/Lesson-4/Formation-of-Standing-Waves.
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Elert, Glenn. “Standing Waves.” The Physics Hypertextbook, [physics.info/waves-standing/.]
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KEY CONCEPTS
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standing waves are produced by the interference of two waves traveling in opposite directions with the same frequency and amplitude
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Zanichelli, Nicola. VINCITORE Fisica 2014 - Onde Stazionarie "Fai Da Te". 14 Apr. 2014, [www.youtube.com/watch?v=a6fK0pLqbJg.]
EXPERIMENT PROCEDURE
- Place the power generator and the support holder at a distance of 45cm
- Attach a one end of the rubber cord to the generator and the other to the holder
- Connect the oscillator to the laptop and to the generator
- Turn on the generator (make sure it’s plugged to the current)
- Set the amplitude at 700mV, the attenuation at 1 and the frequency range of 10-110Hz.
- Raise the frequency of the generator until you see the nodes
- Observe the graph on the computer from the oscillator
- Since every unit fragment of the x-axis equals to 4, multiply 4 by the number of fragments in one wave
- Divide 1 by this number and then divide the result by 1000
- Repeat the experiment witth the other number of nodes
“Standing Waves Review (Article).” Khan Academy, Khan Academy, www.khanacademy.org/science/ap-physics-1/ap-mechanical-waves-and-sound/standing-waves-ap/a/standing-waves-review-ap.
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KEY CONCEPTS
STANDING WAVES
Waves which appear to be vibrating vertically without traveling horizontally. Created from waves with identical frequency and amplitude interfering with one another while traveling in opposite directions.
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NODE
Positions on a standing wave where the wave stays in a fixed position over time because of destructive interference.
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