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Speed of Sound Activity - Contenido educativo
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NASA Connect segment involving students in an activity called the Speed of Sound. The students investigate how sound waves travel at different speeds under various conditions.
Well, while I get things arranged with my band, The Noodles, I'm going to send you to
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Ruffner Middle School in Norfolk, Virginia, where you'll see students from the classroom
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of science teacher Ms. Susan Begay and math teacher Mr. Steven Davis.
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They're conducting an experiment examining the speed of sound.
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Follow along and after that, you can make your own analysis and predictions based upon
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their results.
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So I'll catch you all later.
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Hi, we're students from Ruffner Middle School in Norfolk, Virginia.
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NASA Connect asked us to investigate how sound waves travel at different speeds under various
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conditions.
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In this project, we'll be measuring the speed of sound and calculating the percentage of
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error with our science teacher Ms. Begay and our math and science teacher Mr. Davis.
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To prepare the experiment, pour one or two tablespoons of powdered sugar onto the middle
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of four sheets of tissue paper.
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Pull up the corners and tie it with string.
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Make four bags for the experiment and two additional bags in case of accidental breakage.
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Now we're ready to go.
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First, we record the wind direction, weather conditions, and outdoor temperature in Celsius.
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Next, we mark the spot where the sound engineer will hit the pots.
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From this point, we measure out 50 meter intervals.
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The linear speed engineer teams are located at each of these intervals.
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The sound assistants hold up the bulletin board paper to create a dark background behind
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the sound engineer, which will help the speed engineers to see the puff of smoke.
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The sound engineer tapes one of the bags of powder to the middle bottom of the pan.
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When the sound person hits the two pans together, bursting the bag of powder, the linear speed
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engineers start their stopwatches at the first sign of smoke and to stop them as soon as
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they hear a sound.
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Warning, be ready to use a quick reaction time.
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Ready, set, go.
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The experiment is performed at least three times to get a range of data.
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Now we return to the classroom to analyze data.
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Mr. Davis gives us the formula for determining the speed of sound.
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Speed equals distance divided by time.
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Using the data collected, we calculate the speed of the sound at each location.
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We compare results between the locations.
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Mr. Davis asks, what do these numbers represent?
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Next, each group calculates the accepted value for the speed of sound at the recorded outside
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temperature.
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After we've posted our results, Mr. Davis asks us to calculate the percentage of error
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in the experiment using the following formula of amount of error divided by the accepted
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value times 100.
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We had a good time applying math to solve a problem.
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- Idioma/s:
- Materias:
- Matemáticas
- Niveles educativos:
- ▼ Mostrar / ocultar niveles
- Nivel Intermedio
- Autor/es:
- NASA LaRC Office of Education
- Subido por:
- EducaMadrid
- Licencia:
- Reconocimiento - No comercial - Sin obra derivada
- Visualizaciones:
- 355
- Fecha:
- 28 de mayo de 2007 - 16:53
- Visibilidad:
- Público
- Enlace Relacionado:
- NASAs center for distance learning
- Duración:
- 02′ 57″
- Relación de aspecto:
- 4:3 Hasta 2009 fue el estándar utilizado en la televisión PAL; muchas pantallas de ordenador y televisores usan este estándar, erróneamente llamado cuadrado, cuando en la realidad es rectangular o wide.
- Resolución:
- 480x360 píxeles
- Tamaño:
- 17.79 MBytes