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

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

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

a force between two surfaces in contact with each other

friction a force between two surfaces in contact with each other

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

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

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

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

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

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

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

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

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

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

the conversion of one form of energy to another

energy transformation the conversion of one form of energy to another