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Flashcards Miss DiVito Seventh Grade End of Year Review

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Term
Definition
Kinetic Energy   The energy has because of its motion.  
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Mechanical Energy   The energy that an object has because of its motion or position.  
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Model   A representation of a system, object or concept. Models are used to simplify and make things easier to understand.  
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Potential Energy   Stored energy.  
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System   A set of parts that are connected in some way.  
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Circuit   The complete loop through which an electrical current can pass.  
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Electrical Energy   Energy from interactions between charged particles (electrons).  
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Electricity   The presence or movement of charged particles called electrons.  
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Energy   The ability to do work. Anything that makes matter move or change  
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Energy Transfer   When energy is changed from one form to another. For example, electrical energy into light energy.  
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Green Energy   Energy that comes from sources that do not pollute the Earth.  
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Primary Energy   Energy sources found in nature that have not been subjected to any conversion or transformation process.  
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Secondary Energy   Energy which has been transformed from another source.  
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Force   Push or pull.  
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Simple Machines   Make work easier for us by allowing us to push or pull over increased distances.  
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Mechanical Advantage   The difference between the applied force and the work accomplished.  
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Mechanical Efficiency   The effectiveness of the machine's performance.  
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