Across
- 4. low points
- 7. consist of continually changing voltage in a electric circuit
- 9. light with a wave lengths shorter than visible light
- 11. the number of waves that pass s fixed point in a given point in time
- 13. measures one cycle
- 14. places where the coils are spread apart
- 15. consist of rapid pulses of voltage that repeatedly switch the current on and off
Down
- 1. a disturbance in matter that transforms energy from place to place
- 2. places where the coils are crowded together
- 3. a wave in which medium vibrates at right angles to the direction that the wave travels
- 5. waves in which the medium is in same direction that the wave traveled
- 6. the only light people can see
- 8. light with the longest wave lengths
- 10. a wave that travels along the surface of a medium
- 12. high point
- 16. distance from either the crest or the troughs to the equilibrium