Across
- 1. We perceive different wavelength light as different ______.
- 4. The highest frequency visible light (shortest wavelength).
- 5. When light "bounces off" a surface.
- 10. Acronym, light getting faster refracts towards the normal..., when slowing it refracts away.
- 12. A wave passing through a material.
- 14. The distance between two peaks of a wave.
- 15. The units of frequency.
- 16. When light changes speed (and may change direction) when entering a different material
- 18. The time it takes for one wave to pass.
- 19. How many waves pass a point per second.
- 20. No particles (when surrounding my alarm, you could not hear it).
- 21. When a material allows light wave to pass or transmit through, it is said to be t_______.
Down
- 2. Any material that will not allow light to pass.
- 3. A wave in which the particles vibrate parallel to the direction of the wave.
- 6. The name with give the light ray coming towards a surface. i.
- 7. A wave in which the particles vibrate perpendicular to the direction of the wave.
- 8. The "height" of a wave (loudness for sound, brightness for light).
- 9. Red and blue light combined (not a single wavelength of light).
- 11. When a wave cannot pass through a material, it is a______.
- 12. Any material that allows some light waves to pass.
- 13. An example of a longitudinal wave.
- 17. Acronym. The colours of the visible spectrum (rainbow).
- 18. The common word for frequency for sound waves.
- 22. The construction line we draw perpendicular to a surface where a light ray hits.