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Magnetic fields and solar phenomena - Contenido educativo

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Subido el 17 de mayo de 2024 por Maria Jesús T.

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In this video we will talk about magnetic fields and the rotational period of the Sun.

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As we know, the Sun is a sphere with a diameter of 1.4 million kilometers, and it can reach a temperature of 15.5 million degrees Celsius. 00:00:00
We can represent some magnetic field structures, for example, we can create solar speckles, magnetic fields from solar plasma, 00:00:12
the magnetic field lines, and the coronal rain, with only a jar, two magnets, and iron filings. 00:00:20
Also, we can create the sunspots. These spots are in the sun, and because of their lower temperature, they are darker. 00:00:29
The iron fillings interact with the two magnets, so they represent the magnetic fields. 00:00:39
The sun is a massive sphere of hot gas and magnetic fields, is this one, known as plasma due to its heat temperature. 00:00:45
Plasma motion within the Sun generates an electrocurrent and magnetic field, like this, 00:00:53
resulting in various magnetic structures on its surface, including sunspots, that is this, 00:00:58
prominences, that is this, and coronal loops, that is this. 00:01:04
The sunspots are parts that are at lower temperature, they are at 4200K when the rest of the Sun 00:01:09
is at 6000K approximately. 00:01:18
They are the key to investigate the magnetic activity of the sun. 00:01:21
They are formed because the magnetic field of the sun suppresses convective motions. 00:01:26
They are seen as dark patches when the background is white. 00:01:31
She can exist for days or weeks. 00:01:36
The sunspots often lead to big explosions like solar flares and coronal mass ejections. 00:01:38
This is a bit of a sunspot exploring. 00:01:45
This explosion sends out energy waves across the Sun's atmosphere. 00:01:49
One of the most popular methods to study them is polarization. 00:01:54
This light is electromagnetic waves that are produced by synchronized oscillations of 00:01:58
magnetic and electric fields that move in a perpendicular form. 00:02:03
This is an oscillation. 00:02:08
In our experiment, you can see the iron film representing the magnetic field of the Sun 00:02:10
and how magnets attract them like the gravity of the Sun. 00:02:15
is our experiment. Also, the one that is just one magnet, you can see the representation 00:02:19
of the surface and the magnetic field of the Sun, but not the complete field, just one 00:02:25
side. In the first experiment, we used the iron filings as if they were the solar rays, 00:02:30
and we took two magnets and then we divided the iron filings because we put the two magnets 00:02:39
in the sides of the jar. But they aren't separate because we put the two magnets on the sides 00:02:49
and the magnetic field is equal in both sides. And in the second experiment we use a pair of glasses 00:02:58
with a sheet of paper simulating that we can see the sunspots. This happens 00:03:05
because the polarized light changes. At the beginning the polarized light is circular 00:03:12
but then is linear. For the project we did three experiments. The first one was called solar 00:03:18
magnetic structure. The material we need for this experiment are a pair of strong magnets, 00:03:25
a transparent jar, iron fillings and a transparent body oil. The procedure is to put the iron fillings 00:03:31
inside the jar, then introduce the body oil and finally move the magnets from the outside so it 00:03:37
will simulate a magnetic field. The third experiment was the rotation period of the 00:03:43
sun. For this experiment we need to calculate the diameter of the sun. After we measure the 00:03:48
diameter we calculate the distance between the sunspots. So once the oil had been poured into the 00:03:55
yard and the iron filings had been poured into by taking the two magnets and positioning them 00:04:03
on either side of the yard the iron filings had that effect the iron filings are sensitive to 00:04:10
magnets to the magnet fields generated by magnets that's to help us to visualize the magnetic fields 00:04:19
lines so the results of the second experiment are that mercury lasts 59 days venus 243 00:04:28
days, the Earth 23 hours and 56 minutes, Mars 24 hours and 57 minutes, Jupiter 9 hours and 00:04:40
55 minutes, Saturn 10 hours and 40 minutes, Uranus 17 hours and 14 minutes, Neptune 16 00:04:50
hours and 6 minutes and the overall results are 27 days, 22 hours and 2 minutes. 00:05:00
you 00:05:10
Idioma/s:
en
Autor/es:
Víctor de la Cruz, Mateo Fontúrbel, Juan Serrano, Roberto Fuentes, Alejandro Gómez
Subido por:
Maria Jesús T.
Licencia:
Todos los derechos reservados
Visualizaciones:
4
Fecha:
17 de mayo de 2024 - 18:12
Visibilidad:
Clave
Centro:
IES PRINCIPE FELIPE
Duración:
05′ 14″
Relación de aspecto:
1.78:1
Resolución:
1920x1080 píxeles
Tamaño:
672.17 MBytes

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