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Energy Transformations and Work: Understanding the Conversion of Energy Forms

Explore the concept of energy transformations and work in this chapter, discovering how energy can be converted from one form to another, while abiding by the law of conservation of energy. Learn about friction, nonrenewable and renewable resources, photosynthesis, work, heat, and the conversion of energy forms.

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Energy Transformations and Work: Understanding the Conversion of Energy Forms

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  1. Science 8-Chapter 3—Lesson 2 Energy Transformations and Work

  2. energy can be transformed from one form to another, but it cannot be created or destroyed

  3. law of conservation of energy • energy can be transformed from one form to another, but it cannot be created or destroyed

  4. a force between two surfaces in contact with each other

  5. friction • a force between two surfaces in contact with each other

  6. relating to a natural resource, such as oil or iron ore, that cannot be replaced once it has been used

  7. nonrenewable • relating to a natural resource, such as oil or iron ore, that cannot be replaced once it has been used

  8. a series of chemical reactions that convert light energy, water and carbon dioxide into the food-energy molecule glucose and give off oxygen

  9. photosynthesis • a series of chemical reactions that convert light energy, water and carbon dioxide into the food-energy molecule glucose and give off oxygen

  10. the transfer of energy that occurs when a force makes an object move in the direction of the force while the force acts on the object

  11. work • the transfer of energy that occurs when a force makes an object move in the direction of the force while the force acts on the object

  12. thermal energy moving from a region of higher temperature to a region of lower temperature

  13. heat • thermal energy moving from a region of higher temperature to a region of lower temperature

  14. relating to a natural resource, such as solar energy or wood, that is never used up or that can be replaced by new growth

  15. renewable • relating to a natural resource, such as solar energy or wood, that is never used up or that can be replaced by new growth

  16. the conversion of one form of energy to another

  17. energy transformation • the conversion of one form of energy to another

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