"In physics, energy is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light."
The process by which energy is exchanged between objects or systems.
Energy Fundamentals: Explains the basic concepts and types of energy, such as kinetic, potential, thermal, electrical, and chemical.
Work and Power: Describes work and power, including the definition, formula, and units used for calculations, as well as examples of how energy is transformed through these concepts.
Conservation of Energy: Explains the principle of conservation of energy, which states that energy cannot be created or destroyed but can be transformed from one form to another, and provides examples to help illustrate this principle.
Heat Transfer: Provides an overview of heat transfer, including conduction, convection, and radiation, and how energy is transferred through these processes.
Laws of Thermodynamics: Describes the laws of thermodynamics, which provide a framework for understanding energy and how it is transformed, including the concepts of entropy and enthalpy.
Energy Efficiency: Discusses the importance of energy efficiency, including ways to improve efficiency in various energy-consuming systems and applications.
Electric Power: Examines the generation, transmission, and use of electric power, including the different types of power plants and electricity grids and how they generate and distribute power.
Alternative Energy Sources: Presents various alternative energy sources, such as solar, wind, hydro, and geothermal power, and their potential for reducing reliance on nonrenewable sources of energy.
Energy Storage: Explores different types of energy storage and their applications, such as batteries, capacitors, and flywheels, to help manage fluctuations in energy supply and demand.
Energy Audits: Discusses the use of energy audits to identify areas of inefficiency in energy usage, along with strategies to improve energy management and reduce energy consumption.
Conduction: Transfer of heat energy through direct contact.
Convection: Transfer of heat energy through a fluid (gas or liquid) in motion.
Radiation: Transfer of heat energy through electromagnetic waves or particles.
Chemical: Transfer of energy through a chemical reaction that releases or absorbs energy.
Electromagnetic: Transfer of energy through electric and magnetic fields.
Nuclear: Transfer of energy through nuclear reactions involving atomic nuclei.
Kinetic: Transfer of energy between two or more objects in motion.
Potential: Transfer of energy associated with the position or state of an object.
Thermal: Transfer of energy due to the temperature difference between two objects.
Sound: Transfer of energy through the vibrations of matter that produce sound waves.
Electrical: Transfer of energy through the movement of charged particles, such as electrons.
Gravitational: Transfer of energy associated with the motion of an object in a gravitational field.
Elastic: Transfer of energy between objects due to deformation or stretching.
Magnetic: Transfer of energy through magnetic fields, such as in motors or generators.
Radiant: Transfer of energy through any type of radiation, such as light or X-rays.
"The law of conservation of energy states that energy can be converted in form, but not created or destroyed."
"The unit of measurement for energy in the International System of Units (SI) is the joule (J)."
"Common forms of energy include kinetic energy, potential energy, elastic energy, chemical energy, radiant energy, and internal energy."
"All living organisms constantly take in and release energy."
"Any object that has mass when stationary also has an equivalent amount of energy, and any additional energy acquired by the object will increase its total mass."
"Human civilization requires energy to function."
"Human civilization gets energy from resources such as fossil fuels, nuclear fuel, or renewable energy."
"The Earth's climate and ecosystems processes are driven by the energy the planet receives from the Sun."
"Energy is transferred to a body or a physical system and is recognizable in the performance of work and in the form of heat and light."
"The law of conservation of energy states that energy cannot be created or destroyed."
"Any object with mass when stationary has an equivalent amount of energy called rest energy."
"Energy is measured in the International System of Units (SI) using the unit joule (J)."
"One common form of energy is the kinetic energy of a moving object."
"Chemical energy is associated with chemical reactions."
"Human civilization gets energy from resources such as fossil fuels, nuclear fuel, or renewable energy."
"The energy the planet receives from the Sun drives the Earth's climate."
"All living organisms constantly take in and release energy."
"Energy can be converted in form but not created or destroyed."
"Any additional energy acquired by an object above its rest energy will increase its total mass."