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Transcript
Lesson 3: Energy Transformations Review • The energy of an object or substance in movement; sometimes just called kinetic energy Motion Energy • Person dancing, car in motion, a thrown ball, flowing water. • Energy an object has due to place or position, such as its height above the Earth; a form of potential energy Gravitational Energy • Rock on the edge of a cliff, water behind a dam. • The energy of electrons moving or flowing within a substance Electric Energy • Power lines or home wiring, electricity from a battery • Electromagnetic energy that travels in waves; also called radiant energy Light Energy • Sunlight, the light of a lamp or of a TV, or computer monitor • The internal energy of a substance due to random vibration and movement of its atoms and molecules; also called thermal energy. Heat Energy • Heat form the burner of a stove, charcoal grill, forest fire. • Energy that moves through substances by compression waves; sound Sound Energy • Any kind of sound from humans, machines, animals, Ipods • Energy stored in the chemical bonds between atoms and molecules Chemical Energy • Energy plants store by photosynthesis, any food we eat, coal, oil • Batteries store chemical energy • Energy stored in the nucleus of an atom; the energy that holds an atom together; sometimes called atomic energy Nuclear Energy • Uranium in a nuclear power plant and plutonium in a bomb Law of conservation of energy: First Law of Thermodynamics The total ______of energy in the universe is________. Energy can be neither _________nor__________, but it can be __________from one form to__________.
