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Drag Activity Part One - Contenido educativo

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Subido el 28 de mayo de 2007 por EducaMadrid

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NASA Connect Segment involving students in a classroom activity called What A Drag. The video explores how shape affects drag.

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In honor of the Wright Brothers, NASA Connect traveled south to Kill Devil Hills, North Carolina to conduct today's classroom activity. 00:00:00
Hi! We're from First White Middle School in Kill Devil Hills, North Carolina. 00:00:07
NASA Connect asked us to show you how to do this show's classroom activity. It's called... 00:00:13
What a Drag! 00:00:19
This activity has three parts. 00:00:22
In part one, you'll learn how shape affects drag. 00:00:24
In part two, you'll learn how surface area affects drag. 00:00:27
And in part three, you'll apply what you've learned from parts one and two to determine the object with the least amount of drag. 00:00:31
Make sure your teacher has a lesson guide for this program. All the steps and materials are in it. 00:00:38
Before starting the experiment, construct your drag apparatus. 00:00:45
Then discuss these questions. 00:00:49
What is drag? 00:00:51
How would shape affect drag? 00:00:53
What are some direct and indirect negative effects of drag on a vehicle? 00:00:55
Now, let's test these four shapes for drag. 00:01:00
First, verify that each of the shapes has the same amount of frontal surface area and record your information in the data sheet. 00:01:03
Next, place two shapes on the drag apparatus like this. 00:01:11
Turn the fan on low. 00:01:15
Which shape moves closer to the fan? 00:01:17
That's the one with the least amount of drag. 00:01:20
Record your observations and repeat these steps using different combinations of the shapes. 00:01:23
Look at your data. 00:01:28
Which shape had the least amount of drag? 00:01:29
Does shape affect drag? 00:01:33
Why or why not? 00:01:36
What other variables could have affected the outcome of the experiment? 00:01:39
Thanks, Debbie. Nice job, guys. 00:01:45
Take five, because we'll be back a little later to continue this activity. 00:01:47
But first, let's head to NASA Langley to see how engineers there are using algebra to solve problems with drag. 00:01:50
They use a wind tunnel instead of a box fan to test models with different shapes. 00:01:56
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Idioma/s:
en
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:
529
Fecha:
28 de mayo de 2007 - 16:51
Visibilidad:
Público
Enlace Relacionado:
NASAs center for distance learning
Duración:
02′ 01″
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:
12.33 MBytes

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