Electricity and Energy Storage Technologies
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Questions and Answers

What is a significant advantage of solid state batteries over traditional lithium ion batteries?

  • They charge faster
  • They can store more energy (correct)
  • They are smaller in size
  • They are cheaper to produce

    • Liquid electrolytes in lithium ion batteries can be toxic and pose safety risks.

    True

    What does environmental sustainability mean?

    It means that it doesn't do harm to the environment.

    Sustainable energy is power which can be replenished __________ while causing no long-term damage to the environment.

    <p>indefinitely</p> Signup and view all the answers

    Which of the following practices is an example of sustainability?

    <p>Buying more efficient equipment</p> Signup and view all the answers

    Match the types of sustainability with their definitions:

    <p>Environmental sustainability = Doesn't harm the environment Social sustainability = Promotes healthy living and decent wages Economic sustainability = Practical worth in financial terms</p> Signup and view all the answers

    Economic sustainability is only concerned with environmental management.

    <p>False</p> Signup and view all the answers

    What is a common feature of solid state batteries?

    <p>They use solid electrolytes instead of liquid.</p> Signup and view all the answers

    The overlapping area of social and economic sustainability includes __________.

    <p>Business Ethics</p> Signup and view all the answers

    Which of the following is NOT a characteristic of solid state batteries?

    <p>Liquid electrolytes</p> Signup and view all the answers

    What process occurs in microbial fuel cells to generate electricity?

    <p>Chemical reaction involving oxygen and bacteria</p> Signup and view all the answers

    What type of energy system is a Powerwall?

    <p>Battery storage system</p> Signup and view all the answers

    Betavoltaics can produce a significant amount of energy quickly.

    <p>False</p> Signup and view all the answers

    Renewable energy sources always have a negative impact on local populations.

    <p>False</p> Signup and view all the answers

    What is a characteristic feature of printable organic solar cells?

    <p>They are lightweight and can perform better in low light conditions.</p> Signup and view all the answers

    What is one advantage of floating solar and wind power?

    <p>Increased electricity production without the need for land supports.</p> Signup and view all the answers

    In microbial fuel cells, electrons flow from the anode to the ______ to generate electricity.

    <p>cathode</p> Signup and view all the answers

    Match the following electricity production methods with their descriptions:

    <p>Microbial fuel cells = Use of bacteria to generate electricity Betavoltaics = Energy generation from nuclear waste Printable organic solar cells = Solar cells printed on various surfaces Thermal power = Electricity produced from heat sources</p> Signup and view all the answers

    Electromagnetic fields (EMF) can affect human cells and processes when transported using high voltage power lines and other ______.

    <p>electrical devices</p> Signup and view all the answers

    Match the energy storage technology with its description:

    <p>Powerwalls = Energy storage for later use Ultracapacitors = Rapid energy release and smoothing power delivery Gravity storage = Using potential energy from raised water Storing energy as heat = Using sunlight to heat materials for later electricity generation</p> Signup and view all the answers

    Which of the following is NOT a characteristic of microbial fuel cells?

    <p>Requires sunny conditions for optimal performance</p> Signup and view all the answers

    The anaerobic chamber in a microbial fuel cell is responsible for breaking down organic matter.

    <p>True</p> Signup and view all the answers

    Which of the following is NOT a renewable energy source?

    <p>Nuclear Energy</p> Signup and view all the answers

    Biomass energy is a renewable source of energy.

    <p>True</p> Signup and view all the answers

    How long can a betavoltaic cell last?

    <p>Up to 30 years</p> Signup and view all the answers

    What are two benefits of renewable energy mentioned?

    <p>Economic benefit and better health.</p> Signup and view all the answers

    The microbial fuel cell diagram shows an arrow pointing to the ______ chamber.

    <p>anaerobic</p> Signup and view all the answers

    What is the primary role of the anode in a microbial fuel cell?

    <p>To collect electrons</p> Signup and view all the answers

    The energy stored in potential energy can be released by ______ the water from the reservoir.

    <p>releasing</p> Signup and view all the answers

    What is one of the environmental impacts of non-renewable energy sources?

    <p>Pollution of the environment</p> Signup and view all the answers

    Study Notes

    Electricity Production Technologies

    • Microbial fuel cells (MFCs): Bacteria use oxygen in a chemical reaction, creating electron flow. This process generates electricity.
    • Betavoltaics: Nuclear waste's particles can capture electrons, creating electricity. This process is slow but produces energy for long periods (e.g., 30 years). However, the amount of electricity generated is small.
    • Printable organic solar cells: Semiconductor inks economically print solar cells on various irregular surfaces. These cells are paper-thin and perform better in low light conditions.

    Storing Energy Technologies

    • Powerwalls: Tesla's energy storage device monitors and meters energy consumption.
    • Ultracapacitors: Store and recover energy rapidly. Provide quicker/smoother power delivery than batteries, especially during surges.
    • Gravity storage: Water pumped against gravity stores potential energy. This stored energy can then be released (water released) to generate electricity when needed.
    • Storing energy as heat: Capturing and storing sunlight via concentrated solar energy melts salt and creates heat. This stored heat is used to generate electricity at night.
    • Solid-state batteries: Batteries with solid electrolytes, different from liquid electrolytes in traditional batteries. These are safer and more energy-dense; a future technology for electric vehicles.

    Social and Health Considerations

    • Renewable energy sources: Renewable energy production has minimal negative social and environmental impacts, unlike non-renewable sources.
    • Non-renewable energy: Fossil fuels and nuclear energy sources pollute the local environment and impact local populations.
    • Benefits of Renewable Energy: Creates jobs, improves health, generates income, better consumer choices. It also supports important public services (education, health).
    • Electromagnetic Fields (EMF): Electrical transmission lines create EMFs. Studies on the impact of EMF on humans are ongoing.

    Energy and Sustainability

    • Sustainable energy: Power that can be replenished without causing long-term environmental damage.
    • Sustainability Factors:
      • Environmental Sustainability: Doesn't harm the environment.
      • Social Sustainability: Supports healthy living and fair wages, also community improvements.
      • Economic Sustainability: Practical and worthwhile from a monetary standpoint. Sustainable practices often involve more efficient equipment.

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    STEM: Electricity and Energy Production PDF

    Description

    Explore various innovative technologies in electricity production and energy storage. From microbial fuel cells to Tesla's Powerwalls, this quiz covers the fundamental concepts and mechanisms behind each technology. Test your knowledge on how these systems work and their applications.

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