Uploaded on

 

More in: Business , Technology
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
  • The things that surrounds us have their purpose like our environment. We can benefit from wind because it can also produce energy to generate electricity through the use of a wind turbines that acts as a tool in transforming the wind into energy which is only free. We gain positive result out of it but nothing was taken from us.
    Are you sure you want to
    Your message goes here
    Be the first to like this
No Downloads

Views

Total Views
1,261
On Slideshare
0
From Embeds
0
Number of Embeds
1

Actions

Shares
Downloads
63
Comments
1
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide
  • wiatr
  • Wiatr wyniki

Transcript

  • 1. Wind Energy Zespół Szkół Ogólnokształcących nr7 in Katowice
  • 2. Wind energy
    • What is wind energy?
    • Humans have used wind energy to power machinery in windmils for hundreds of years. Today, electricty companies are building wind turbines to make electricity for homes, schools and factories.
  • 3. Advantages of wind energy
    • It is a renewable from of energy, which means it will never run out.
    • Wind energy is clean. It causes no pollution.
    • The land on which turbines are built can still be used for farming.
    • It costs no more than coal energy and is cheaper than nuclear energy.
  • 4. Possible disadvantages
    • Some people are concerned about noise, although wind turbines are quieter than many people think.
    • Wind turbines do not work in very weak or very strong winds.
    • Some people think that wind farms spoil the look of the landscape, although others disagree this is a matter of opinion.
  • 5. Experiment with wind energy.
    • Join rotor blades with dynamo.
    • Connect bulb with dynamo.
    • Use vaccum cleaner to blow on your rotor blades.
    • Observe bulb.
  • 6. Conclusions:
    • Bulb lights on.
    • Wind has got kinetic energy. There is a possibility to transform the kinetic energy into the electricity.
  • 7. The device that makes wind energy transforms into electricity is:
    • Wind turbine
    • Microwave
    • PV cells
  • 8. Check your answer.
    • True, wind turbine transforms the wind power into the electricity
    • False, microwave is used to heat meals
    • False, PV cells are used to get the energy from the sun.
  • 9. Does wind turbine produce CO 2
    • Yes
    • No
    • Only if the wind is strong
  • 10. Check your answer.
    • False, wind turbines are absolutely environmentaslly friendly.
    • True, wind turbines do not produce CO 2
    • False, strong current stops the production of electricity.
  • 11. Since when the wind energy has been used to electricity production:
    • One does not use the wind energy because it does not exist.
    • The wind energy has been used for many years.
    • The wind energy has been used since the ancient times.
  • 12. Check your answer.
    • False, the experiment shows that the wind energy undoubtfully exists.
    • True, the Netherlands are famous for its landscape full of various wind turbines.
    • False, there was no electricity in the ancient times.
  • 13. Thank you for your attention. Created by: Marcin Kurka and Tomasz Świątkowski. (Rodimus) (Vierra)