Across
- 5. an area of sparsely populated medium
- 6. the three secondary colors are yellow, magenta and _____
- 9. the particles of matter that make up electromagnetic waves
- 11. the time it takes for one complete wave cycle
- 12. the bending of light through a new medium
- 13. light always bends towards the ____of a prism
- 14. a shape that produces convergent light
- 15. the scattering of light through a prism
Down
- 1. a type of mechanical wave-sound, for example
- 2. the distance between two crests
- 3. the frequency at which an object vibrates
- 4. the distance between start and finish
- 7. a shape that produces divergent light
- 8. an area of tightly compressed medium
- 10. a object with a speed of more than Mach 5