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7th Grade
Unit 6: Forces and Motion
Lesson 2: Potential and kinetic
Energy
Vocabulary of Instruction:
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Conservation of Energy
• Is a physical law which states that energy can be converted to a different form, but it is never lost all together.
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Energy Conversion• States that the
total amount of energy in any closed system remains constant but can be recreated, although it may change forms.
Solar panels are used to capture light energy from the sun and convert it to electricity.
Green plants undergo photosynthesis to convert light energy into chemical energy in the form of food.
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Energy of Motion• Is kinetic
energy that is causing work.
Energy of Motion
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Energy of Position
• Is potential energy that is stored in an object.
Energy of Position
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Energy Transformations
• Is any process of transforming one form of energy to another.
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Kinetic Energy• Is energy
of motion that is causing work.
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Potential Energy• Is stored energy or
energy of position.