Study guide

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Across
  1. 1. A characteristic of a unit of matter that expresses the extent to which it has more or fewer electrons than protons
  2. 4. A passive electronic component that stores energy in the form of an electrostatic field.
  3. 5. physics is the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms.
  4. 9. The derived unit for electrical potential, electrical potential difference (voltage) and electromotive force.
  5. 11. effect The apparent change in frequency is caused by either the source of the waves moving, the observer moving, or both moving at different velocities.
  6. 15. (denoted by 'T' ) is the time needed for one complete cycle of vibration to pass a given point
  7. 16. source A two terminal device which can maintain a fixed voltage
  8. 18. A substance that makes possible the transfer of energy from one location to another, especially through waves.
  9. 19. wave A form of the mechanical wave where the oscillating particles in the medium move parallel to the direction of the wave.
  10. 21. The study of stationary electric charges or fields as opposed to electric currents.
  11. 22. resistance The ratio of the voltage applied to the electric current which flows through it.
  12. 25. current An electric current which periodically reverses direction
  13. 27. The measurement of electrical resistance between two points of a conductor
  14. 28. waves The range of wavelengths or frequencies over which electromagnetic radiation extends.
  15. 29. is a vibration that typically propagates as an audible wave of pressure, through a transmission medium such as a gas, liquid or solid.
Down
  1. 2. 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.
  2. 3. distance between successive similar points , such as crests, of a wave.
  3. 6. A subatomic particle that is positively charged and can be found in the nucleus of every atom.
  4. 7. Force A noncontact interaction between two objects having electrical charge and that has the ability to change the motion of one or both of the objects.
  5. 8. is a point on the wave where the displacement of the medium is at a maximum.
  6. 10. physics, the number of crests of a wave that move past a given point in a given unit of time.
  7. 12. is the point on a wave with the maximum value or upward displacement within a cycle
  8. 13. 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.
  9. 14. is a region in a longitudinal wave where the particles are closest together
  10. 17. The act or process by which an electric or magnetic effect is produced in an electrical conductor or magnetizable body when it is exposed to the influence or variation of a field of force.
  11. 20. A subatomic particle that is negatively charged and can either be bound to an atom or be free.
  12. 22. field A vector field in which the physical quantity is the electric force per unit charge.
  13. 23. An object or type of material that allows the flow of an electrical current in one or more directions
  14. 24. a disturbance (or oscillation) in a medium that is accompanied by a transfer of energy.
  15. 26. (Hz) is a unit of frequency, defined as the number of complete cycles of a periodic signal that take place in one second