# Physics - Chapter 11

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1. simple harmonic motion
vibration about an equilibrium position in which a restoring force is proportional to the displacement from equilibrium
2. amplitude
the max displacement from the equilibrium
3. period
the time that it takes a complete cycle to occur
4. frequency
the number of cycles or vibrations per unit of time
5. medium
a physical environment through which a disturbance can travel
6. mechanical wave
a wave that requires a medium through which to travel
7. transverse wave
a wave whose particles vibrate perpendicularly to the direction the wave is traveling
8. crest
the highest point above the equilibrium position
9. trough
the lowest point below the equilibrium position
10. wavelength
the distance between two adjacent similar points of w ave, such as from crest to crest of from trough to trough
11. longitudinal wave
a wave whose particles vibrate parallel to the direction the wave is traveling
12. constructive interference
a superposition of two of more waves in which individual displacements on the same side of the equilibrium position are added together to form the resultant wave
13. destructive intereference
a superposition of two or more waves in which individual displacements on opposite sides of the equilibrium position are added together to form the resultant wave
14. standing wave
a wave pattern that results when two waves of the same frequency, wavelength, and amplitude travel in opposite directions and interefere
15. node
a point in a standing wave that maintains zero displacement
16. antinode
a point in a standing wave, halfway between two nodes, at which the largest displacement occurs
 Author: kaylacody17 ID: 210356 Card Set: Physics - Chapter 11 Updated: 2013-03-30T16:18:32Z Folders: Description: . . . Show Answers: