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Oct. 4 ,2010 Forms of Energy Starters • 10/4/10 (3rd box) • Describe the shoes you are wearing today. • Use 5 Quantitative and 5 Qualitative observations. • This can be a list not a sentence. What is Energy? • http://player.discoveryeducation.com/index .cfm?guidassetid=ed3c0bad-dffc-453080bb-198aad55b4b9# • Discovery video, Forms of energy – Discoveryeducation.com • Middle school science » » » » Energy sources Human use of energy Watch Different types of energy 6:01 Two Energy Forms • Potential – Potential energy stored and the energy of position. – Potential means capable of being or becoming or possible. • Kinetic – Kinetic energy is motion, the motion of waves, electrons, atoms, molecules and substances. – Kinetic means • adjective 1.pertaining to motion.2.caused by motion.3.characterized by movement: Running and dancing are kinetic activities. Types of Potential Energy • Chemical • Nuclear • Stored Mechanical • Gravitational Chemical Energy is Potential Energy • Chemical Energy: Stored in the bonds of atoms and molecules. Examples: –Biomass Chemical Energy Examples Continued Natural Gas Petroleum Chemical Energy Examples Continued Propane Coal Nuclear Energy is Potential Energy • Nuclear energy is the energy stored in the nucleus of an atom – the energy that holds the nucleus together. • Examples are • Uranium Atom • Fusion – The Sun is a process in which two nuclei join, forming a larger nucleus and releasing energy. • Nuclear Fission – splitting the atom Stored Mechanical Energy is Potential Energy • Stored Mechanical Energy is energy stored in objects by the application of a force. • Examples are springs and Rubber bands Gravitational Energy is Potential Energy • Gravitational Energy is the energy of Place or position. • Examples are Water behind a Dam, when released it becomes energy of motion. Types of Kinetic Energy (Motion) • Radiant • Thermal • Motion • Sound • Electrical Energy Radiant Energy is Kinetic Energy • Electromagnetic energy that travels in transverse waves. Solar energy, x-rays & gamma rays are examples. Thermal Energy is Kinetic Energy • Thermal energy or heat is the internal energy in substances – the vibration and movement of atoms and molecules within substances. • Geysers are an example. One Benefit of Geothermal Energy Motion is Kinetic Energy • The movement of objects or substances from one place to another. Wind and hydropower are two examples. Sound is Kinetic Energy • Sound is the movement of energy through substances in longitudinal waves. Electrical Energy is Kinetic Energy • Electrical energy is the movement of electrons. Lightning and electricity. Two Categories of Energy POTENTIAL • The Possibilities… KINETIC Motion