Across
- 3. the distance between crests of a wave
- 5. a stable subatomic particle with a charge of negative electricity
- 8. an electromagnetic wave with a wave length in the range .001 - .3m
- 10. the maximum extent of a vibration or oscillation, measured from the position of equilibrium
- 11. phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation
- 13. lowest energy state of an atom or other particle
- 16. a fundamental constant, equal to the energy of a quantum of electromagnetic radiation divided by its frequency
- 17. a state of a physical system that is higher in energy than the ground state
- 19. the natural agent that stimulates sight and makes things visible
Down
- 1. a disturbance of one or more quantities
- 2. the range of wave lengths or frequencies over which electromagnetic radiation extends
- 4. the variety of frequencies of electromagnetic radiation that are emitted by electrons
- 6. the segment of the electromagnetic spectrum that the human eye can view
- 7. the rate at which something occurs or is repeated over a particular period of time
- 9. a function describing the location and wave like behavior of an electron in an atom
- 12. an energy level associated with electrons defined by quantum theory
- 14. a discrete quantity of energy proportional in magnitude to the frequency of radiation it represents
- 15. an electromagnetic wave of a frequency between about 10^4 and 10^11 or 10^12 Hz
- 17. the strength required for sustained physical or mental activity
- 18. a particle representing a quantum of light or other electromagnetic radiation