Physics Semester Test Review

5. number of cycles completed in one second
7. reflected sound wave
11. the change in frequency of a wave in relation to an observer when the wave source and observer are moving relative to each other
13. a quantity that has both magnitude and direction
15. a number that tells us how much light slows down when entering a material
19. wave interference in which the resultant amplitude is greater than the individual amplitudes
21. the point in a longitudinal wave at which minimum pressure occurs
23. the sum of multiple vectors
24. bending or change in direction of light when it travels from one medium into another
26. the type of electromagnetic radiation with the longest wavelength, lowest frequency, and lowest energy
27. when a material transmits all (or almost all) incident light
28. also known as a diverging mirror

1. occurs when a standing wave is formed inside an air column causing an instrument to vibrate
2. frequency at which the first standing wave is produced
3. the only type of electromagnetic radiation humans can see
4. transfer of energy caused by a vibration
6. how quickly an object is moving with no concern about its direction
8. also known as a converging mirror
9. center of a lens
10. reflection when parallel light rays strike a surface and all reflect at the same angle
11. change in position
12. time it takes to complete one cycle
14. points on a standing wave where the wave has zero amplitude
16. location of an object relative to a reference point
17. material through which a wave moves
18. a flat mirror
20. the type of electromagnetic radiation with the shortest wavelength, highest frequency, and highest energy
22. rate of change of velocity
25. when a material does not transmit incident light
27. point on a wave at which the maximum negative displacement occurs