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Transcript
Energy Types & Forms What is Energy? • The ability to do work Types of Energy Potential vs. Kinetic • Potential Energy – Stored energy • Kinetic Energy – Energy of motion Forms of Energy Mechanical Energy • The total energy of motion and position of an object – Mechanical energy = potential + kinetic – Examples: rollercoaster, juggling Thermal Energy • All of the kinetic energy due to random motion of particles that make up an object – Depends on speed & number of particles – Examples: boiling water, rubbing hands together Chemical Energy • Energy stored in the bonds of atoms & molecules – Examples: baking soda, fossil fuels Electrical Energy • Energy of moving electrons – Electrons are negatively charged particles – Examples: appliances Sound/Acoustic Energy • Energy caused by the vibrations of an object – Examples: guitar, speakers Light/Radiant Energy • Energy produced by the vibrations of electrically charged particles – Examples: sun, microwave, radio waves Nuclear Energy • Energy that comes from changes in the nucleus of an atom – Examples: sun, uranium, hydrogen Magnetic Energy • Energy from the attraction of objects made of iron – Examples: magnets, generators
