Across
- 1. how light bends as it passes around an object
- 4. magnitude of sound
- 5. a curved lens like the outside of a sphere
- 6. 7 colors
- 7. (of a material or article) allowing light to pass through so that objects behind can be distinctly seen
- 13. A band of colors, as seen in a rainbow, is produced by the separation of the components of light by their different degrees of refraction according to wavelength.
- 14. substance (gas, liquid, or solid) through which sound waves travel
- 15. a curved lens like the inside of a sphere
- 17. when light is bent as it moves through one kind of matter to another
- 19. an object is opaque when all light is absorbed or reflected; no image can be seen
- 22. a wave vibrating in the direction of propagation
Down
- 2. a wave in which the medium vibrates at right angles to the direction of its propagation.
- 3. move back and forth
- 8. Device that increases an electric current to increase the volume
- 9. the length between the compressions in a sound wave
- 10. Unit to measure the frequency
- 11. stream of light pointed in one direction
- 12. particle that carries visible light and other forms of electromagnetic radiation
- 13. shape produced by light being blocked by an opaque object
- 16. A reflection of sound
- 18. When light bounces off of an object
- 20. Something that bends light, but is not a lens
- 21. (of a substance) allowing light, but not detailed shapes, to pass through; semi-transparent