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26 Cards in this Set
- Front
- Back
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alternating current (AC)
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a flow of electric charge that regularly reverses its direction Ex. anything you plug in
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ampere
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unit of electric current
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conductor
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A device designed to transmit electricity, heat, etc.
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direct current (DC)
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Flows in one direction only e.g. cells batteries and solar cells produce this
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electric circuit
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a complete, unbroken path through which electric charges can flow
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electric current
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The continuous flow of electric charges through a material; unit= amperes
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electric motor
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A device that uses an electromagnet to turn an axle
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electromagnet
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a temporary magnet created when an electric charge moves through a magnetic material
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electromagnetic induction
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the process of creating a current in a circuit by changing a magnetic field
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generator
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A machine that converts mechanical energy into electrical energy
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Hydroelectric Power
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a renewable energy that uses the force of flowing water to spin a turbine to generate electricity
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Hydrogen Fuel Cells/Batteries
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a renewable energy that uses a device that converts the chemical energy from a fuel into electricity through a chemical reaction of positively charged hydrogen ions with oxygen
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insulator
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A material that does not allow heat or electrons to move through it easily.
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magnetic domain
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A region in which the magnetic fields of all atoms are lined up in the same direction
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magnetic field
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The area of magnetic force around a magnet
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magnetic pole
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one of two points, such as the ends of a magnet, that have opposing magnetic qualities
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magnetism
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The force of attraction or repulsion of magnetic materials
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Ohm's Law
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V=IR
The relationship of voltage, current, and resistance |
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parallel circuit
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A closed electrical circuit in which the current is divided into two or more paths and then returns via a common path to complete the circuit.
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Photo-voltaic Panels
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Solar energy in the form of photons are captured by solar cells in order to generate electricity
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resistance
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A material's opposition to the flow of electric current; Unit = Ohm's
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series circuit
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A circuit in which all parts are connected end to end to provide a single path of current.
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Solenoid
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a cylindrical coil of wire acting as a magnet when carrying electric current.
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static electricity
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A buildup of electric charge on an object.
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turbine
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A machine for producing power in which a wheel or rotor is made to revolve by a fast-moving flow of water, steam, gas, or air.
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volt
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unit of electric charge
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