visits

dimecres, 10 d’abril del 2013

TASK 10:

The video gives us information on seven energy: the solar energy, the wind energy, the hydro or water energy, the geothermal energy, the tidal energy, the wave energy and the biomass energy.

Solar energy: Earth recieves1366 Watts/sq. Mt. of solar energy, the solar energy used and cooking, lighting, heating, etc.

Wind energy: Wind generally blows at 160 KMPH, a 8m/s breeze blowing through a 100 meter diameter rotor wold move almost 77000 kilograms of air per second producing 2.5 MW of energy.

Hydro or water energy: Highest used renewable source, very high potential, hydroelectric power sources dams.

Geothermal energy: It is strictly not a renewable source as it can get depleted over time at a location, geysers are the source of geothermal energy.

Tidal energy: It is the power achieved by capturing energy contained in moving mass due to tides.

Wave energy: It is energy of ocean surface waves and capturing it to get useful work.

Biomass energy: Biomass includes biodegradable waste that can be burnt as fuel.

This is the video: 

divendres, 5 d’abril del 2013

TASK 8:

This is a power point about solar energy:



Distribution of tasks

TASK 5:

TASK 1: Arnau and Youssef
TASK 2: Arnau, Youssef and Júlia
TASK 3: Arnau, Youssef, Ilona and Júlia
TASK 4: Arnau, Youssef, Ilona, Júlia and Judit
TASK 5: Arnau, Youssef, Ilona, Júlia and Judit
TASK 6: Arnau and Júlia
TASK 8: Ilona and Youssef
TASK 10: Judit
TASK 6:

Is a quiz about energy:

http://www.ecokids.ca/pub/eco_info/topics/energy/quiz/index.cfm


Is a game to learn more about solar energy:

http://www.wonderville.ca/asset/solarenergydefenders

dijous, 4 d’abril del 2013


PICTURES ABOUT SOLAR ENERGY:



WHAT IS SOLAR ENERGY?


Solar energy is the energy obtained from the use of electromagnetic radiation from the Sun
Solar radiation reaching the Earth has been harnessed by humans since ancient times, using different technologies that have evolved over time from conception. Currently, heat and sunlight can be harnessed through sensors and photovoltaic cells and thermal collectors heliostats that can transform it into electrical or thermal energy. It is a so-called renewable energy or clean energy.


This is a video about solar energy:


TASK 4:

I did the task 4.