* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Types and Forms of Energy
Kinetic energy wikipedia , lookup
Efficient energy use wikipedia , lookup
William Flynn Martin wikipedia , lookup
Open energy system models wikipedia , lookup
Energy subsidies wikipedia , lookup
100% renewable energy wikipedia , lookup
Energy storage wikipedia , lookup
Low-Income Home Energy Assistance Program wikipedia , lookup
Regenerative brake wikipedia , lookup
Public schemes for energy efficient refurbishment wikipedia , lookup
Zero-energy building wikipedia , lookup
Low-carbon economy wikipedia , lookup
World energy consumption wikipedia , lookup
Energy Charter Treaty wikipedia , lookup
Internal energy wikipedia , lookup
Energy policy of Australia wikipedia , lookup
Alternative energy wikipedia , lookup
International Energy Agency wikipedia , lookup
Energy returned on energy invested wikipedia , lookup
Energy policy of the United Kingdom wikipedia , lookup
Energy efficiency in transport wikipedia , lookup
Life-cycle greenhouse-gas emissions of energy sources wikipedia , lookup
Distributed generation wikipedia , lookup
Energy harvesting wikipedia , lookup
Energy policy of Finland wikipedia , lookup
Conservation of energy wikipedia , lookup
Negawatt power wikipedia , lookup
Energy in the United Kingdom wikipedia , lookup
Energy policy of the European Union wikipedia , lookup
United States energy law wikipedia , lookup
Energy efficiency in British housing wikipedia , lookup
Energy Independence and Security Act of 2007 wikipedia , lookup
Types of Energy and Forms of Energy Energy • Energy exists in many forms. • Energy can be moved from one object to another. • Energy can be changed from one form to another. • Energy cannot be created or destroyed. What is Always Present But Never Visible? ENERGY Although energy isn’t visible, you can detect evidence of energy. Law of Conservation of Energy With every transformation, some energy is converted to less useful forms. Energy conversions are not 100% efficient. The energy output for the intended purpose is seldom the same as the energy we put in. 100 J electricity in 95 J heat out 5 J light out Potential Energy The energy in matter due to its position or the arrangement of its parts Kinetic Energy Energy of a moving object Seven Forms of Energy Mechanical Heat/Thermal Chemical Nuclear Electrical Sound Light/Solar Mechanical Energy • Energy that moves objects from place to place • You use mechanical energy when you kick a ball or turn the pedals of a bicycle • Other examples include water flowing in a stream, tires rolling down a road and sound waves from your iPod. Chemical Energy • Energy released by a chemical reaction • The food you eat contains chemical energy that is released when you digest your meal • Wood, coal, gasoline, and natural gas are fuels that contain chemical energy Electrical Energy • Energy that comes from the electrons within atoms • It can be generated at a power plant or inside a battery and can power everything from remotecontrolled cars to refrigerators • Lightning and static electricity are also forms of electrical energy Heat (Thermal) Energy • Energy created by the motion of atoms and molecules that occurs within an object • Thermal energy exists when you heat a pot of water on a stove Nuclear Energy • Energy contained in the nucleus of an atom • Nuclear energy is released when nuclei are split apart into several pieces, or when they are combined to form a single, larger nucleus Light (Solar/Radiant) Energy • Energy that can move through empty space • The sun and stars are powerful sources of radiant energy • The light given off by light bulbs and campfires are also forms of radiant energy Sound Energy • Sound energy is a form of energy that is associated with vibrations of matter. • It is a type of mechanical wave which means it requires an object to travel through. This object includes air and water. Energy Forms • These forms of energy do work that end up as motion, light, or heat. • Energy is used to power manufacturing, light buildings, propel vehicles, and communicate messages. What else do we use energy for? Energy Conversion All forms of energy can be converted into other forms of energy ENERGY CONVERSION – The change of energy one form to from __________ another. LAW OF CONSERVATION OF ENERGY – States that energy created or cannot be ________ destroyed ___________. Energy is constantly changing forms. Plant leaves convert sunlight into ________ sugar, chemical _________ energy. SOLAR ENERGY CHEMICAL ENERGY Energy is constantly changing forms. ELECTRICAL ENERGY A video game converts electrical _________ energy into light and LIGHT + SOUND ______ _______ sound energy. Energy is constantly changing forms. MECHANICAL ENERGY HEAT (thermal) ENERGY Energy is constantly changing forms. A car converts chemical _________ energy into mechanical __________ energy. CHEMICAL ENERGY MECHANICAL ENERGY What conversions do you see in the following? A FAN ELECTRICAL ENERGY MECHANICAL ENERGY What conversions do you see in the following? CHEMICAL ENERGY LIGHT ENERGY A FLASHLIGHT ELECTRICAL ENERGY What conversions do you see in the following? ELECTRICAL ENERGY PENCIL SHARPENER MECHANICAL ENERGY What conversions do you see in the following? CHEMICAL ENERGY MECHANICAL ENERGY BATTERY POWERED ROBOT ELECTRICAL ENERGY What conversions do you see in the following? MECHANICAL ENERGY DRUM SOUND ENERGY What conversions do you see in the following? SOLAR ENERGY Plant CHEMICAL ENERGY MECHANICAL ENERGY (Our muscle movement) WHAT OTHER EXAMPLES CAN YOU THINK OF?