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Transcript
Energy Notes Energy: The work that energy allows us to do can be divided into 5 main tasks. 1.) Produce light 4.) Produce 2.) Produce heat 5.) Power technology 3.) Produce motion Motion (Kinetic) Energy: growth Types of Energy The energy that an object has because of its motion. Examples: o o o o Thermal energy- Hand warmers Sound energy- Listening to music on stereo Light energy- Projector in classroom Motion energy- Kid doing push-ups Stored (Potential) Energy: The energy an object has because of its position or because of the arrangement of parts, rather than its motion. Examples: o o o o o Gravitational energy- Slinky Chemical energy- Battery Elastic energy- Rubber band Nuclear energy- Nuclear power plant Electrical energy- Christmas lights Energy Transfers Law of Conservation of energy: When energy is transferred there is always an energy receiver. receiver always energy source The source always and decreases in energy and the increases in energy. Energy Diagrams The transformation of energy can be shown using an Energy Diagram. Object energy Chemical Elastic Gravitational Motion Light Electrical Sound Nuclear Thermal Object The word in the arrow is based on the type of energy that is increasing. Thermal Chemical Motion (use for elastic, sound,and gravitational) Electrical Light energy Chemical Elastic Gravitational Motion Light Electrical Sound Thermal Examples:
