7th Grade

Unit 6: Forces and Motion

Lesson 2: Potential and kinetic

Energy

Vocabulary of Instruction:

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.

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.

Energy of Motion• Is kinetic

energy that is causing work.

Energy of Motion

Energy of Position

• Is potential energy that is stored in an object.

Energy of Position

Energy Transformations

• Is any process of transforming one form of energy to another.

Kinetic Energy• Is energy

of motion that is causing work.

Potential Energy• Is stored energy or

energy of position.