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Examples on how to use conversion factors - Contenido educativo

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Subido el 12 de octubre de 2020 por Juan C. F.

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Hello, I've been reading your work this weekend and I can see that you have some difficulties with some conversion factors. 00:00:00
So I'm going to teach you how to do this. They were the most difficult in the set of activities. 00:00:07
I'm going to start with this one. The problem about this one is that it has three units. 00:00:13
So we have micrometers, we have grams, we have seconds. 00:00:18
And we need to change from micrometres to centimetres, from grams to kilograms, and from seconds to hours. 00:00:24
So we are going to need three conversion factors. 00:00:31
The first one, I'm going to change from micrometres to centimetres. 00:00:33
OK, so I do the same as always. 00:00:38
But firstly, I need to remember, I need to know, how many centimetres in a micrometre. 00:00:42
So if you remember the submultiples, the centi is here, the micro is here, and this is 10 to the power minus 6. 00:00:50
So there are like four steps between micro and centi. 00:01:01
That means that one centimeter is 10,000 or 10 to the power of 4 micrometer. 00:01:05
OK, so with this, we have this first change. 00:01:12
Now we're going to the second one is grams to kilograms. 00:01:15
grams here, kilograms here. And this is easy, 1 kilogram is 1000 grams. And finally we need 00:01:19
to change from seconds to hours. Seconds are here, remember that they are below the line, 00:01:29
so over the line here, and hour is 3600 seconds. Now the only thing I need to do is to use 00:01:37
my calculator to find out and multiply this by this and divide by this and I 00:01:48
have the final result okay now I'm going I'm going with this and I have to 00:01:56
remember that one liter is one cubic decimeter it's the same so I'm going to 00:02:05
write the first unit with cubic decimeters and cubic and square 00:02:09
centimeters okay and firstly I'm going to change from cubic decimeters to cubic 00:02:14
meters one meter is 10 meters but it's cubed and now I'm going to change this 00:02:21
is the first change now I'm going to change from giving decimeters to giving 00:02:28
me sorry for square decimeters to square meters so decimeters to meters remember 00:02:33
they are here and they are square one meter is 30 meters and it's square okay 00:02:40
So this cancel this, this cancel this, and all I have to do is multiply by 100 and divide by 1000. 00:02:47
So this is the final result. 00:02:56
Okay, I hope it helps to prepare for your exam, for your quiz. 00:03:02
Idioma/s:
en
Autor/es:
Juan Carlos Fajardo
Subido por:
Juan C. F.
Licencia:
Reconocimiento - Compartir igual
Visualizaciones:
108
Fecha:
12 de octubre de 2020 - 18:28
Visibilidad:
Público
Centro:
IES CLARA CAMPOAMOR
Duración:
03′ 07″
Relación de aspecto:
17:9 Es más ancho pero igual de alto que 16:9 (1.77:1). Se utiliza en algunas resoluciones, como por ejemplo: 2K, 4K y 8K.
Resolución:
1920x1008 píxeles
Tamaño:
11.56 MBytes

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