Across
- 1. the point with the largest displacement when two wave pulses meet
- 4. the lowest frequency of a sound that will resonate
- 5. effect the shift in observed frequency of a source due to relative motion between source and observer
- 6. a material that allows charges to move about easily
- 8. the amount that an image is enlarged or reduced in size, relative to the object
- 10. an instrument used to determine charge, consists of a metal knob connected by a metal stem to two pieces of metal foil
- 15. flux the rate at which light energy is emitted from a luminous source
- 16. a type of wave, the particles of the medium move perpendicularly to the direction of the wave
- 19. higher frequencies which are odd-number multiples of the fundamental frequency
- 20. an image formed of diverging light rays, always on the opposite side of the mirror from the object
- 21. the removal of excess charge through contact of the object to Earth
Down
- 2. the result of the superposition of two or more waves, either constructive or destructive
- 3. the unit of measurement for sound level
- 4. point the point where incident light rays that are parallel to the principal axis converge after reflecting from the mirror
- 5. the spreading of waves around the edge of a barrier
- 7. the difference between wave frequencies when mixed
- 9. the number of complete oscillations a wave makes each second, equal to reciprocal of period
- 11. a medium that transmits light, but scatters the image
- 12. a line drawn perpendicular to the barrier used to show the direction of the barrier
- 13. one joule per coulomb, unit for electric potential difference
- 14. the separation of white light into a spectrum of colors
- 17. an electric device used to store charge that is, made up of two conductors separated by an insulator
- 18. the SI standard unit of charge