CP4 - Crossword Labs

4. A way of transferring energy or information without transferring matter.
7. When the waves are re-emitted from the material at the same wavelength.
9. ray The ray of light which is refracted and changes direction.
10. A line drawn at a right angle to the boundary
11. The length of time it takes a wave to pass a certain point.
12. When light changes direction when it hits a different material, causing its speed to change.
14. The line where two different materials meet.
15. When waves can pass through a material.
17. ray The ray of light that strikes a surface

1. The maximum distance of a wave from the rest position.
2. angle The angle between the normal and the refracted ray.
3. The distance from one point on a wave to the same point.
5. The length of time it takes a wave to pass a certain point.
6. angle The angle between the incident ray and the normal.
8. The number of waves passing a point each second. The units for frequency are hertz (Hz)
13. when the waves do not pass through a material.
16. The speed of a wave in one direction.