Earth Science L5
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Questions and Answers

What do wind turbines convert into electrical energy?

  • Geothermal energy
  • Solar energy
  • Wind energy (correct)
  • Nuclear energy
  • Why are windmills becoming a common sight across the United States?

  • They are easy to maintain
  • They are affordable to install
  • They are incredible power-producing machines (correct)
  • They are aesthetically pleasing
  • What is an example of a facility that requires a constant supply of energy to keep people safe and healthy?

  • Schools
  • Restaurants
  • Hospitals (correct)
  • Shopping malls
  • Why is it mentioned that wind is going to blow whether we use it for generating electricity or not?

    <p>To emphasize the abundance of wind energy</p> Signup and view all the answers

    What are some examples of energy sources that can be regenerated?

    <p>Wind, water, and the sun</p> Signup and view all the answers

    What is the primary reason for the height of modern windmills?

    <p>To capture faster wind speeds and reduce turbulence</p> Signup and view all the answers

    What is the approximate percentage of the world's total electricity production provided by hydroelectric power?

    <p>19%</p> Signup and view all the answers

    What is the primary issue with hydroelectric power production?

    <p>Disruption of natural plant and animal communities</p> Signup and view all the answers

    What is the main difference between passive and active solar power collection?

    <p>Passive solar power is collected through absorption, while active solar power is actively focused, moved, or stored</p> Signup and view all the answers

    What is a downside of solar power equipment mentioned in the text?

    <p>High upfront costs</p> Signup and view all the answers

    Study Notes

    Wind Energy

    • Wind turbines convert kinetic energy from wind into electrical energy.
    • Windmills are becoming a common sight across the United States due to their increasing adoption as a renewable energy source.

    Energy Requirements

    • An example of a facility that requires a constant supply of energy to keep people safe and healthy is a hospital.

    Renewable Energy Sources

    • Wind is a renewable energy source that can be regenerated, and it will blow regardless of whether we use it for generating electricity or not.
    • Other examples of energy sources that can be regenerated include solar power and hydroelectric power.

    Windmill Design

    • The primary reason for the height of modern windmills is to capture more consistent and stronger wind currents.

    Hydroelectric Power

    • Hydroelectric power provides approximately 20% of the world's total electricity production.
    • The primary issue with hydroelectric power production is the dependence on a constant water supply, which can be limited by geographical factors.

    Solar Power

    • The main difference between passive and active solar power collection is that passive systems use building design and materials to absorb and store heat, while active systems use solar panels to convert sunlight into electrical energy.
    • A downside of solar power equipment is that it can be expensive to install and maintain.

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    Test your knowledge of energy sources, consumption, and sustainability with this quiz. Explore the impact of electricity usage on daily life and the environment.

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