Physics 1164-003

6. The change in direction of a propagating wave, such as light or sound
7. A ray that does not propagate in a plane that contains both the object point and the optical axis.
9. The angle between the surface normal and the reflected ray
11. It has a North and South pole.
13. When a beam of light crosses the boundary between a vacuum and another medium, or between two different media, the wavelength of the light changes, but the frequency remains constant.
14. You can hear it
15. The warmer/hotter something is the more _____________________ it’s Particles/molecules have.
19. The area around a magnet where a magnetic force can be detected
20. The point on the axis of a lens or mirror to which parallel rays of light converge or from which they appear to diverge after refraction or reflection.
21. A two-dimensional surface, any two of whose points can be joined by a straight line that lies entirely in the surface.
23. All of the kinetic energy due to random motion of the particles that make up an object.
24. Curved like a segment of the interior circle.

1. To scatter or cause to scatter; disseminate; disperse.
2. the branch of physics which involves the behavior and properties of light
3. To tend to meet in a point or line; incline toward each other, as lines that are not parallel.
4. To move, lie, or extend in different directions from a common point; branch off.
5. A material that a magnet has made magnetic.
8. Used to find which direction to travel. This uses magnets
10. A ray that passes through the axis of an optical fiber.
12. Thermal energy is the energy a substance or system has related to its ___________________.
16. A ray of light that strikes a surface. The angle between this ray and the perpendicular or normal to the surface is the angle of incidence.
17. Another word for rainbow
18. The angle which the indecent ray makes the normal equal to the angle and the reflected Ray make the same normal.
22. Having a surface that is curved or rounded outward.