Electricity and Waves

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Across
  1. 2. An electrical is a material in which electric current does not flow freely
  2. 5. a class of waves in which the particles of the disturbed medium are displaced in a direction that is perpendicular to the direction of propagation of the wave
  3. 8. is the unit of electric current in the International System of Units
  4. 10. is a two terminal device which can maintain a fixed voltage
  5. 12. electrical charge cannot be created or destroyed
  6. 13. the bending of light it also happens with sound water and other waves
  7. 14. equal to the difference in electric potentials between two given points in a wire carrying an electric current of magnitude
  8. 18. energy that comes from a source and travels through space at the speed of light
  9. 19. The number of wave cycles to pass a given point per unit of time
  10. 22. is a stream of charged particles such as electrons or ions moving through an electrical conductor or space
  11. 24. 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
  12. 25. a unit of frequency of change in state or cycle in a sound wave alternating current or other cyclical
  13. 27. occurs when two waves of the same frequency and amplitude are moving in opposite directions and interfere with each other
  14. 28. is a subatomic particle found in the nucleus of every atom
  15. 29. a disturbance or variation that transfers energy progressively from point to point in a medium
  16. 30. charge cannot be created or destroyed
Down
  1. 1. are materials which have a conductivity between conductors generally metals and nonconductors or insulators
  2. 3. also known as electric pressure electric tension or potential difference is the difference in electric potential between two points
  3. 4. the maximum value of a quantity during a specified time interval
  4. 6. is an electric current which periodically reverses direction and changes its magnitude
  5. 7. The repulsive or attractive interaction between any two charged bodies
  6. 9. is the physical field that surrounds electrically charged particles and exerts force on all other charged particles in the field either attracting or repelling them
  7. 11. a measurement of resistance between two points of a conductor
  8. 15. describes how long the wave is
  9. 16. wave consisting of a periodic disturbance or vibration that takes place in the same direction as the advance of the wave
  10. 17. The bending of a wave around the edges of an opening or an obstacle
  11. 20. The highest surface part of a wave
  12. 21. The type of matter through which a wave's energy propagates
  13. 23. a tiny particle that comprises waves of electromagnetic radiation
  14. 26. a type of electromagnetic radiation