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24 Cards in this Set
- Front
- Back
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Battery
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A combination of two or more electrochemical cells; also, a direct-current voltage source which converts chemical, thermal, nuclear, or solar energy into electrical energy.
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Compression
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A decrease in spring length from its equilibrium position or length.
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Elastic Potential Energy
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The energy stored in a spring when work is done in compressing or stretching it; a scalar quantity.
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Electromagnetic Energy
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The energy associated with electric or magnetic fields.
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Elongation
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An increase in spring length from its equalibrium length or position.
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Energy
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The ability to do work; a scalar quantity.
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Generator
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Device that converts mechanical energy into and electrical energy by rotating a large coil of wire in a magnetice field.
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Gravitational Potential Energy
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The work done or the energy change of an object resulting from lifting the oject to a height above Earth's surface; a scalar quantity.
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Ideal Mechanical System
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A closed system in which no friction or other nonconservative force is acting.
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Internal Energy
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The total potential and kinetic energy possessed by the particles that made up an object, but excluding the potential and kinetic energy of the system as a whole.
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Joule
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A derived SI unit equal to the work done when a force of one newton produces a displacement of one meter; the unit for electrical energy.
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Kinetic Energy
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The energy of an object due to its motion; a scalar quantity.
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Law of Conservation of Energy
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States that in a closed, isolated system, the total charge of the system remains constant.
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Mechanical Energy
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The sum of the kinetic and potential energies in a system; a scalar quantity.
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Motor
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Device that converts electrical energy into mechanical energy as a result of forces on a current-carrying conductor in a magnetic field.
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Nonideal Mechanical System
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A system in which a nonconservative force such as friction is acting.
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Nuclear Energy
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The energy released by nuclear fission, the division of a heavy atomic nucleus into parts of comparable mass, or by nuclear fusion, the combining of two light nuclei to form a heavier nucleus; a scalar quantity.
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Photocell
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A device that converts light, a form of electromagnetic radiation, into electrical energy.
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Potential Energy
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The energy possessed by an object due to its position or condition; a scalar quantity.
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Power
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The rate at which work is done or energy is consumed; a scalar quantity.
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Spring Constant
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The constant of proportionality between the applied force and the compression or elongation of a spring.
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Thermal Energy
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Also called heat; is the total kinetic energy possessed by the individual particles that comprise an object.
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Watt
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The derived SI unit of power equal to on joule per second.
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Work
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The transfer of energy to an object when the object moves due to the application of a force that is entirely in the direction of motion or has a component in the direction of the object's motion.
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