| Across |
| 2. |
Wave speed is the distance the wave travels in a given amount of time, such as the number of meters it travels per second |
| 4. |
the action of restricting the vibrations of a transverse wave, especially light, wholly or partially to one direction |
| 10. |
position the equilibrium position: The point in a chemical reaction at which the concentrations of reactants and products are no longer changing |
| 11. |
top of a wave |
| 14. |
Diffraction refers to various phenomena that occur when a wave encounters an obstacle or opening |
| 15. |
he quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone |
| 17. |
A trough is an elongated region of relatively low atmospheric pressure |
| 18. |
the reinforcement or prolongation of sound by reflection from a surface or by the synchronous vibration of a neighboring object |
| 19. |
the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave |
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| Down |
| 1. |
the throwing back by a body or surface of light, heat, or sound without absorbing it: |
| 3. |
producing or capable of producing much noise; easily audible |
| 5. |
a length or portion of time |
| 6. |
is the number of occurrences of a repeating event per unit of time |
| 7. |
the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through |
| 8. |
the maximum extent of a vibration or oscillation, measured from the position of equilibrium |
| 9. |
a unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale |
| 12. |
The Doppler effect or Doppler shift (or simply Doppler, when in context) is the change in frequency of a wave in relation to an observer who is moving relative to the wave source |
| 13. |
the natural agent that stimulates sight and makes things visible |
| 16. |
vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear |
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