Wave Light Sound Flashcards
Medium
The material that gets disturbed/ moved
What are the two types of waves
Transversals
Longitudinal
Transversal
Medium motion perpendicular to the direction of wave( energy traveled )
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Longitudinal
Motion of medium is parallel to wave direction, medium bunches up into compressions and spreads out into rarefactions
Rare fraction
The part if longitudinal wave not compressed
Compression
The part of longitudinal wave that’s compressed
Amplitude
Max distance molecules displaced from rest position, hieght of wave
How is energy and amplitude related
More energy equals more amplitude
How is sound/intensity related to amplitude
More amplitude equals louder sound
How is energy related to light
More energy equals Brighter light , more intense
Wavelength
Distance between two consecutive rarefactions or compressions
(Crests or troughs )
Crest
Top of wave
Trough
Bottom of wave
What determines the type of electromagnetic wave
Wavelength
Type of waves from longest to shortest
Radio, micro, infared, visible, ultraviolet, X-Ray, gamma
What dos shorter wave length means
Shorter equals more energetic and frequency
Frequency
Number of waves per second, how many waves pass a ser per second
Hertz
One wave per second
At a SET speed what is the relationship between frequency and wavelength
When frequency increases wavelength decreases
What does frequency of light determine
Color
Pitch
Frequency of sound
How are frequency and pitch related
When frequency increase so does pitch
Faster the vibrations means
Higher pitch/frequency
Ultrasonic
Higher pitch
What is the range of audible sound
20- 20,000 hz
Subsonic
Lower pitch
Period
Time for one wave to pass set point
How are periods and wave length related at a SET speed
Loner wave equals longer period at set speed
How are periods and frequency related
Higher frequency means shorter periods
Formula for frequency
F = 1/p
Formula for period
P= 1/f
Wave speed
How fast one crest is moving
Speed formula
Frequency X wavelength
How does speed of light change going through different mediums
Fastest in vacuum, then air, then water, then slowest in solid