Understanding Energy Transformations: Forms, Examples & Laws
Explore the world of energy transformations with discussions on potential energy, kinetic energy, mechanical energy, thermal energy, radiant energy, and sound energy. Discover how energy transitions from one form to another and the fundamental Law of Conservation of Energy.
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Presentation Transcript
Solar Power Notes Part 3: Energy Transformations
Energy Transformations The process of changing energy from one form to another The flow from one type of energy to another.
Law of Conservation of Energy Energy can neither be created nor destroyed Energy doesn t disappear Energy just transforms from one form to another Example: A flashlight converts electrical energy into to radiant energy.
Potential Energy Energy that is stored. Forms of Potential Energy Mechanical Chemical Nuclear Electrical
Kinetic Energy Energy that is in motion Forms of Kinetic Energy Mechanical Radiant Electrical Thermal Sound
Mechanical Energy - Kinetic The energy a body possesses because of its motion caused by gravity or elasticity Examples: flowing water, winds, arrow shot from a bow, bouncing on a trampoline
Mechanical Energy - Potential The energy a body possesses because of its position, energy stored by gravity or elastic potential. Examples: book on a table, compressed spring, rubber band pulled back
Thermal Energy - KE Also referred to as heat energy The total energy of atoms and molecules that are constantly in motion. Examples Burner on a stovetop turned on Hot cup of cocoa Fire
Radiant Energy - KE Also referred to as solar or light energy Energy caused by the movement of electromagnetic waves Examples: Light emitted by light bulbs Sun Microwaves
Sound Energy Energy in the form of wave motion Vibrations spread in all directions as one vibrating object touches another causing it to vibrate Examples: Drum Tuning fork Talking
Electrical Energy Electrical Energy - PE Electrical Energy - KE Moving electrons from one point to another in a conductor Stored electrons not moving Examples: Light bulb turned off Stove turned off Power outages Electrons in clouds Examples: Electric current in wires Lightning
Chemical Energy - PE Energy stored in chemical substances Examples: Fuel Explosives Food Batteries Wood
Nuclear Energy - PE Also known as atomic energy The energy stored in the nucleus of an atom Examples: Nuclear power plants The Sun
