Chapter 4 : Energy
Energy exists in various forms and can transform from one type to another while adhering to the conservation law. The chapter examines types of energy, their transformations, and the importance of sustainable energy solutions to ensure a bright future.
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Sections
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6.2Project
What we have learnt
- Energy encompasses diverse forms such as mechanical, thermal, and chemical.
- Energy can change form but it cannot be created or destroyed.
- Renewable energy sources are becoming increasingly vital to meet future energy demands.
- Effective conservation and efficient usage of energy resources are crucial to minimizing waste.
Key Concepts
- -- Mechanical Energy
- Energy associated with the motion or position of an object.
- -- Thermal Energy
- Energy that comes from heat; it is the total kinetic energy of the particles in a substance.
- -- Chemical Energy
- Energy stored in the bonds of chemical compounds, like food and batteries.
- -- Electrical Energy
- Energy caused by the movement of electrons.
- -- Renewable Energy
- Energy from sources that are naturally replenished, such as solar and wind.
- -- Nonrenewable Energy
- Energy from sources that cannot be replenished within a short period, like fossil fuels.
- -- Energy Conservation
- The practice of reducing energy consumption through using less of an energy service.
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