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3. If energy is neither created nor destroyed then from where do we get energy?

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Understanding the Conservation of Energy Introduction: In the realm of physics, the principle of conservation of energy is fundamental. It states that energy cannot be created nor destroyed, but it can be transformed from one form to another. Let's delve into where we obtain energy despite this law. Sources...
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Understanding the Conservation of Energy

Introduction: In the realm of physics, the principle of conservation of energy is fundamental. It states that energy cannot be created nor destroyed, but it can be transformed from one form to another. Let's delve into where we obtain energy despite this law.

Sources of Energy:

  1. Natural Resources:

    • Fossil Fuels: Coal, oil, and natural gas are examples. These contain stored energy from ancient organic matter.
    • Renewable Resources: Solar, wind, hydro, and geothermal energy utilize natural processes to harness energy sustainably.
  2. Nuclear Energy:

    • Uranium and plutonium undergo controlled nuclear reactions, releasing large amounts of energy.
  3. Chemical Energy:

    • Food: Through metabolism, our bodies convert food into energy.
    • Batteries: Chemical reactions within batteries produce electrical energy.
  4. Geothermal Energy:

    • Heat from the Earth's core is tapped into for power generation or heating purposes.

Energy Conversion:

  • Transformation Processes:

    • Combustion: Burning fossil fuels converts chemical energy into heat and mechanical energy.
    • Photosynthesis: Plants convert solar energy into chemical energy stored in carbohydrates.
    • Nuclear Fission/Fusion: Splitting or combining atomic nuclei releases enormous amounts of energy.
  • Technology and Machinery:

    • Engines: Internal combustion engines, turbines, and electric motors convert energy from one form to another for various applications.
    • Solar Panels: Photovoltaic cells convert sunlight directly into electricity.

Human Ingenuity and Innovation:

  • Research and Development:

    • Scientists continuously explore new methods of energy production, storage, and efficiency.
    • Advancements in technology lead to more efficient utilization of existing energy sources.
  • Energy Conservation:

    • Strategies to reduce energy consumption through efficiency improvements and lifestyle changes contribute to sustainability.

Conclusion: Despite the law of conservation of energy, humanity harnesses energy from various sources through ingenious methods and

 
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