Physics Semester Review

2. the type of energy that is stored as a change in altitude
4. the height of a wave. It is proportional to the energy the wave carries.
5. a type of lens or mirror in which the rays of light are directed away from the principal axis.
8. this is the ability to do work, or the storing of work that has been done in the past.
9. the type of energy that is stored as a compression or stretch of an object.
10. the unit for measuring frequency.
11. an image formed not by actual light rays, but by the eyes belief that rays come from a certain location.
14. The creator of the corpuscular theory of light.
16. the distance of one complete cycle of a traveling wave.
20. The phenomenon where electricity is created when light is shone on a metal.
21. The rule that light rays bounce off of a surface at the same angle it strikes the sruface.

1. the type of energy that is stored as motion
3. A device that conserves work and tends to make it easier to lift or move objects.
6. this is what happens when light changes direction upon entering a new medium.
7. law that states that energy can neither be created nor destroyed.
12. a type of wave that travels in the same direction that it vibrates.
13. the material through which a wave travels.
15. this is a property done when a force is applied over a distance to some object.
17. the type of energy that is stored as heat in a substance.
18. the unit for measuring energy.
19. this is when waves bend around a barrier or spread out through a gap.
20. If the question is “What is light?”, This is the answer.
22. How often a cycle of a traveling wave is completed. It is measured in HZ.