Mostrando entradas con la etiqueta Tecno 3º-t5. Mostrar todas las entradas
Mostrando entradas con la etiqueta Tecno 3º-t5. Mostrar todas las entradas

18 abr 2012

TECNO 3º ESO. Generación y Transporte de E.Eléctrica. Tema 5

Como ya vimos en el tema anterior, la generación de energía procede pricipalmente de las centrales que utilizan diversos métodos para mover una turbina y así un generador que produzca corriente alterna.
A continuación puedes ver un video donde tu hamster podría generar energía electrica para mantener una luz encendida.


Una vez generada viene el TRANSPORTE, otro paso esencial.
Accede al siguiente enlace para ver cómo se produce el transporte de la energía eléctrica desde las centrales hasta los puntos de consumo. Recuerda que el encargado principal de todo esto es "el transformador".

17 abr 2012

TEC 3ºESO. Centrales Eléctricas. Animaciones

Echa un vistazo a las siguientes animaciones sobre las centrales de generación eléctrica, te dará una visión más concreta de lo que hemos visto en clase.

Fuentes: eroski-consumer, http://tecnotic.wordpress.com

16 abr 2012

TEC 3ºESO. Cálculo del consumo eléctrico.

We are going to use this animation so we can find out how many electrical energy is consumed by the equipments that are normally used at home.
The price of the electricity it's allways changing, you can find out how much is this looking at the electricity bill (power bill).

Here you are some keywords usefull for the activity:
power: potencia
power rating: potencia (de salida)
current: Intensidad
voltage: voltaje
appliance: equipo, aparato
heater: calefactor

Download this image so you can see how to calculate the cost of the energy of each one of the appliances in the house.
When you click on any equipment in the house, this window will pop up, so you can configure the activity of that appliance. You have to estimate how many time do you use each appliance PER DAY.


If you roll the mouse over an object the game will show you its configuration.(PopUps button must be ON).
FIRST OF ALL you will need to set the price of the electricity in SPAIN, nowadays=0.1612€/kWh
You have to set this by clicking on the calculator icon, and remember, you have to convert the price to cents.

Once you have done that, you must set the information for every appliance in the house so we can calculate the price of electricity for ONE MONTH.
For each appliance you must write down in your notebook:

  • Name
  • Energy(per day)
  • Cost(per day)

Click in the next image to follow the link:

13 abr 2012

TEC 3ºESO: Energy. FINAL WORK

We are going to finish the Unit 5 with this investigation work. 
Read the following text:


“Energy is the ability to do work”


It comes in different forms: heat (thermal), light (radiant), mechanical, electrical, chemical, and nuclear energy. Energy is in everything. We use energy to do everything we do, from making a jump shot to baking our favorite cookies to sending astronauts into space, Energy is there making sure we have the power to do it all.

All forms of energy are stored in different ways, in the energy sources that we use every day. These sources are divided into two groups:

  • RENEWABLE (an energy source that can be replenished in a short period of time):
    • solar energy, which comes from the sun and can be turned into electricity and heat.
    • Wind
    • Geothermal energy from inside the earth
    • Biomass from plants
    • Hydropower
    • Ocean energy from water 
  • NONRENEWABLE (an energy source that we are using up and cannot recreate in a short period of time).
However, we get most of our energy from nonrenewable energy sources, which include fossil fuels: oil, natural gas, and coal. They're called fossil fuels because they were formed over millions and millions of years by the action of heat from the Earth's core and pressure from rock and soil on the remains (or "fossils") of dead plants and animals. Another nonrenewable energy source is the element uranium, whose atoms we split (through a process called nuclear fission) to create heat and ultimately electricity.

Translate the following keywords of the unit:



  • thermal:
  • radiant:
  • mechanical:
  • eléctrical:
  • chemical:
  • nuclear:
  • renewable:
  • nonrenewable:
  • fossil:
  • oil:
  • coal:
  • uranium:

WORK:
Answer the questions in the slides, explaining with your words in your notebook. You can obtain all the informatión you need following the steps in the next slides:
(better in fullscreen --arrows in the bottom-right corner--)

6 may 2010

TECNO 3º ESO. LA ENERGÍA. Tema 5

Vamos a ver algunos videos acerca de la producción de energía eléctrica.
(Algunos están en inglés , así que agudiza el oido...)

Energía Hidroeléctrica


Energía Nuclear




Energía Maremotriz



Central de Biomasa