# CFI Physics Vocab 2

 The flashcards below were created by user BrettIRB on FreezingBlue Flashcards. Period Any given point in space, a periodic wave repeats itself after a time Frequency An inverse of a period Wavelength The distance of a wave, just a period represents time Reflection An abrupt boundary between one medium and another Refraction Traveling in a different direction unless the incident wave's direction of propagation is along the normal a change in propagation direction Constructive interference Super position of a wave that are in waves with one another Destructive interference the superposition of a wave that 180 degrees of a phase Longitudianl wave the motion of particles in the medium is along the same line of the propagation of the wave Ultrasound sound waves above 20kHz Doppler effect The frequency change, the oberserved frequency is different from the frequency transmitted by the source, when the source or the observer are in motion relative to the wave medium. Temperature Thermal equilibrium, a quantity that dertermines when objects are in thermal equilibrium Heat Energy in transit between two objects or systems due to temprerature difference between them Absolute zero the idea of all molecular matter coming to a complete stop. The lower limit of attainable temperature.0 degrees K Ideal gas law establishes a relationship between pressure, volume, the amount of gas, and absolute temperature Internal evergy The total energy of all molecules in a system, except for microscopic energy Specific heat The heat capacity per unit mass Conduction takes place within solids, liquids and gases, due to collision between molecules and atoms in which energy is exchanged Convection Involved fluids that carry heat from one place to another. Material moves unlike conduction Electric conductor Materials in which some charge can move easily Electric insulators Materials in which some charge cannot move easily Electric field Electric force per unit charge Electrostatic equilibrium No net motion of charge Capacitor Device that stores potenital energy by soting seperated positive and negative charges Direct Current The current on any branch always moves in the same direction Alernating current Circuits in which the currents occasionally reverses the current Ohms law The current is proportional to change in voltage Motional EMF Induced when conductor is moved in a magnetic field Faradays Law The induced emf due to changing magnetic flux, no matter what the reason for the flux change Transverse Wave The motion of particles in the medium is along the same line of the propagation wave Electric Potential Electric potential energy per unit charged AuthorBrettIRB ID66477 Card SetCFI Physics Vocab 2 DescriptionPhysics Vocab 2 Updated2011-02-21T12:27:45Z Show Answers