Activa JavaScript para disfrutar de los vídeos de la Mediateca.
Thrust Experiment
Ajuste de pantallaEl ajuste de pantalla se aprecia al ver el vídeo en pantalla completa. Elige la presentación que más te guste:
NASA Sci Files segment involving students in an activity to measure the limits of vertical thrust.
Hi, I'm Jennifer Parsons, a 5th grader in Ms. Susan Caton's class at Green Valley Elementary
00:00:00
School in Boone, North Carolina.
00:00:07
We performed an experiment on thrust.
00:00:09
My classmates and I asked ourselves, does weight affect thrust and acceleration?
00:00:11
Our hypothesis is, if enough weight is added to the balloon, then the thrust will not be
00:00:17
able to lift the balloon.
00:00:21
Here is what you will need for the project, a balloon, a straw, a string, 30 paper clips,
00:00:22
masking tape, a cup, 3 oz. size, scissors, and a hole punch.
00:00:29
First, measure the distance from the ceiling to the floor.
00:00:34
Add 15 cm to that measurement and cut a length of string for that amount.
00:00:38
Tape or tie the string to a spot on the ceiling.
00:00:43
Thread the straw into the string, stretch the string taut, and tape it to the floor.
00:00:46
Take the cup and using a hole punch, punch 3 holes evenly spaced around the top of the
00:00:52
cup.
00:00:56
Now, cut 3 pieces of string 30 cm long.
00:00:57
Tie one string to each hole in the cup.
00:01:01
Blow the balloon up, but don't tie it off.
00:01:03
Position the cup underneath the balloon and tape the other end of the string to the balloon
00:01:06
so that it looks like a hot air balloon with a basket under it.
00:01:10
Tape the balloon to the straw, lower it to the floor, count down, and release.
00:01:14
3, 2, 1, blast off!
00:01:19
Yay!
00:01:23
Mark how high the balloon rose on the string.
00:01:25
Measure and record your data.
00:01:28
Blow the balloon up again.
00:01:30
Make sure it's the same size as before, but this time add 5 paperclips to the basket.
00:01:32
Lower the balloon, count down, and release.
00:01:37
With each trial, add 5 paperclips.
00:01:41
What happened to the height of the launch as you added weight?
00:01:44
Here's what we concluded from our data.
00:01:47
As we added more paperclips, our balloon didn't shoot as high.
00:01:49
What did this experiment tell you about thrust?
00:01:53
Take a close look at our data.
00:01:55
As we added more paperclips, our balloon lost a lot of power and it wasn't able to shoot as high.
00:01:57
We concluded the heavier the plane, the more thrust you need.
00:02:03
Okay, thanks for your help!
00:02:07
Well, ask Dr. D how vertical thrust relates to an airplane.
00:02:09
Bye!
00:02:12
From the Y-Files Kids Club at Green Valley Elementary School in Boone, North Carolina.
00:02:13
- Valoración:
- Eres el primero. Inicia sesión para valorar el vídeo.
- 1
- 2
- 3
- 4
- 5
- Idioma/s:
- 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:
- 363
- Fecha:
- 28 de mayo de 2007 - 15:32
- Visibilidad:
- Público
- Enlace Relacionado:
- NASAs center for distance learning
- Duración:
- 02′ 18″
- 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:
- 13.94 MBytes
