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### 42 Cards in this Set

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 Disturbances that transfer energy through space Wave The matter through which a wave travels Medium A wave that requires a medium through which to travel :: Disturbances in matter that carry energy Mechanical Wave – a wave cause by a disturbance in electric and magnetic fields and that does not require a medium; also called a light wave Electromagnetic Wave Wave that causes the particles of the medium to vibrate perpendicular to the direction the wave travels Transverse wave a wave that causes the particles of the medium to vibrate parallel to the direction the wave travels Longitudinal wave The highest point of a transverse wave Crest The lowest point of a transverse wave trough The greatest distance that particles in a medium move from their normal position when a wave passes amplitude The distance between two crests or two troughs wavelength the time required for one full wavelength to pass a certain point Period the number of vibrations per second Frequency the speed at which a wave passes through a medium Wave speed an observed change in the frequency of a wave when the source or observer is moving Doppler Effect the bouncing back of a wave as it meets a surface or boundary Reflection The bending of a wave as it oasses an edge or an opening Diffraction the combination of two or more waves that exist in the same place at the same time Interference any interference in which waves combine so that the resulting wave is bigger than the original waves Constructive Interference any interference in which waves combine so that the resulting wave is smaller than the largest of the original waves Destructive Interference the wave form caused by interference that appears not to move along the medium and that shows some regions fo no vibration and other regions of maximum vibration Standing Wave an electrical property of matter that creats a force between objects Electric charge a materical that transfers charge easily conductor a material that does not transfer charge easily insulator the force of attraction or repulsion between charged objects electric force the region around a charged object where it has an effect on other charged objects electric field the potential energy of a chraged object due to its postion in an electric field Electrical potential energy The difference in electrical potential energy between two places in an electric field potential difference a devise that is a source of electric current because of a potential difference, or voltage, between the terminals cell the rate that electric charges move through a conductor current opposition to the flow of charges in a material resistance an electrical device connected so that i provides one or more complete paths for the movement of charges Electric Circuit a graphic representation of an electric circuit or apparatus, with standard symbols for the electrical devices Schematic Diagram Describes a circuit or portion of a circuit that provides a single conducting path Series describes components in a circuit that are connected across common points, providing two or more separate conducting paths Parallel the energy associated with the electrical charges, whether moving or at rest Electrical energy an electrical device containing a metal strip that melts when current in the circuit becomes too great Fuse a device that protects a circuit from current overloads Circuit Breaker an area of a magnet where the magnetic force appears to be the strongest Magnetic pole a region where a magnetic force can be detected magnetic field a coil of current carrying wire that produces a magnetic field solenoid a strong magnet created when an iron core is inserted into the center of a current-carrying solenoid electromagnet the productions of a current in a conducting circuit by a change in the strength, position, or orientation of an external magnetic field Electromagnetic Induction