Electricity and Waves Vocab

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Across
  1. 3. A two-terminal device which can maintain a fixed voltage
  2. 6. An object or type of material that allows the flow of an electrical current in one or more directions
  3. 9. A vector field in which the physical quantity is the electric force per unit charge.
  4. 10. A substance that makes possible the transfer of energy from one location to another, especially through waves.
  5. 11. A unit of measure of the rate of electron flow or current in an electrical conductor.
  6. 12. An electric current which periodically reverses direction.
  7. 14. The derived unit for electrical potential, electrical potential difference (voltage) and electromotive force.
  8. 16. A phenomenon of exactly zero electrical resistance and expulsion of magnetic flux fields occurring in certain materials.
  9. 19. The apparent change in frequency caused by either the source of the waves moving, the observer moving, or both moving at different velocities.
  10. 20. A neutral, subatomic particle that can be found in the nucleus of nearly every atom.
  11. 22. is a disturbance (or oscillation) in a medium that is accompanied by a transfer of energy.
  12. 24. (Hz) is a unit of frequency, defined as the number of complete cycles of a periodic signal that take place in one second.
  13. 26. The maximum extent of a vibration or oscillation, measured from the position of equilibrium.
  14. 27. is the point on a wave with the maximum value or upward displacement within a cycle.
  15. 29. The process of removing the excess charge on an object by means of the transfer of electrons between it and another object of substantial size.
  16. 30. A characteristic of a unit of matter that expresses the extent to which it has more or fewer electrons than protons.
Down
  1. 1. is a region in a longitudinal wave where the particles are closest together.
  2. 2. A material that is neither a good conductor of electricity nor a good insulator, but has properties of electrical conductivity somewhere between the two.
  3. 4. in physics, the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms.
  4. 5. In physics, the number of crests of a wave that move past a given point in a given unit of time.
  5. 7. The range of wavelengths or frequencies over which electromagnetic radiation extends.
  6. 8. (denoted by 'T' ) is the time needed for one complete cycle of vibration to pass a given point.
  7. 13. Any substance that has an absence of any electrical conduction
  8. 15. The emission and propagation of energy in the form of rays or waves. The energy radiated or transmitted in the form of rays, waves, or particles.
  9. 17. A form of mechanical wave where the oscillating particles in the medium move parallel to the direction of the wave.
  10. 18. A form of mechanical wave where the oscillating particles in the medium move perpendicular to the direction of the wave
  11. 21. The measurement of electrical resistance between two points of a conductor
  12. 23. The distance between successive similar points, such as crests, of a wave.
  13. 25. The electrical potential difference that produces electric current between two points in a circuit.
  14. 28. A passive electronic component that stores energy in the form of an electrostatic field.