February Flashcards
Wave
The transfer of energy without transferring matter
Crest
Highest point of the wave
Trough
Lowest
Amplitude
The distance from the resting point to the crest of a wave
Frequency
The number of waves fthat pass a given point in a set period of time
Wavelength
The distance from crest to crest or trough to trough
Period
Time for a complete cycle to pass a given point
Medium
Matter through which a a mechanical wave travels
Transverse
A wave in which the energy travels perpendicular
Electromagnetic
A wave that does not need a medium to travel through
Longitudinal
A wave in which the energy travels in the same direction as the disturbance
Compression
When the waves are pushed closer together
Rarefraction
The point in longitudinal wave where the matter is spaced farther apart
Reflection
When wave strike a surface and bounce back in another direction
V ~ velocity ~ speed
m/s
f ~ frequency ~
hz
lambda ~ wavelength
meters
Lambda
v divided by f = lambda
v
f x lambda = v
f
v divided by lambda = f
How do we see
Visible light
What is light
A wave
What waves can travel through space
Electromagnetic wave
What waves have to have matter
Mechanical wave
Example of electromagnetic wave
Microwave~ Radio Wave~ Gamma Rays~ Infrered Rays~ X- Rays
Example of Mechanical wave
Sound waves~ a wave in water~ stadium wave~ echos
The two parts of the Compressional Wave
Compression and Rarefraction
Example of Compressional wave
Sound Wave~
Wavelength is measured in……..
Meters
Where would I measure a compressional wave
Compression to compression or rarefraction to rarefraction
The higher the _________ the more energy in the wave
Frequency
Where does v go in a division problem
Under the bracket
Refraction
The bending of waves through a different medium
Diffraction
The bending of waves around an object
What are the two different types of mechanical wave
Transverse~ compressional
What do mechanical waves need
A medium
The most common compressional is
Sound wave
What makes your shirt the color it is
Reflection
