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