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What is wavelength?

Distance between any two consecutive identical points along a wave; distance interval for wave repitition.
what is amplitude?
- 1/2 of crest to trough distance.
- maximum displacement for equilibrium on either side.
What is a crest?

Point of maximum positive displacement. a+ peak.
what is a trough?

a maximum negative displacement; a - peak
what is Equilibrium?

Point (or line) of Zero displacement; undisturbed position.
What is a Cycle?
- One complete vibration or Oscillation.
- The distance measured from crest to crest.
What is a Period?
- The time it takes for one wave to repeat itself.
- Time / # of Cycles
What is Frequency?

# of Cycles/ time
A moving distrubance requiring a material medium to move in it is called

Machanical Wave
A wave in whcih the medium vibrates parallel to the direction of wave travel is a

Longitudinal wave
As a mechanical wave travels, it transfers an amount of------ related to the waves amplitude.

energy
Frequency has a SI unit of

Hz (or s^-1)
What does SHM stand for?

Simple Harmonic Motion
At a constant speed, if the wavelength increases, then the frequency of the wave must

decrease
if the wavelength increases, then the speed of the wave must...

stay constant
the relationship between wavelenth and frequency is a(n)

inverse relationship
The speed of an mechanical wave can be varied only by changing the

medium.
If a wave propigates at one cycle every 1 second, then it has a ____ of 1s.

period
Period is defined as

time for one cycle
This is not an example of SHM

a record rotation on a turntable..
this is an example of SHM

a child swinging on a swing.
amplitude is defined as the

maximum displacement from equilibrium
For SHM where do the force and acceleration have maximum magnitude?

At the crest and the trough of a wave.
For SHM where does maximum velocity occur?

At equilibrium

Author

bailesxlove11

67888

Card Set

Physics

Description

SHM and waves

Updated

2011-02-21T19:40:14Z

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