Waves Flashcards
Frequency
Number of cycles a wave completes in a period of time;the number of times happens in a period of time
Period
The time needed for a complete cycle to pass a given point
Wavelength
The difference from crest to crest or though to trough
Crest
The highest point of a wave
Trough
The lowest point of a wave
Medium
An intervening substance,as air, through which a force acts or an effect is produced
Amplitude
Distance from resting point to crest
Longitudinal wave
A wave that occurs when the particles of a medium move parallel to the direction of the wave
Rarefraction
The deacrease in density in a longitudinal wave
Electromagnetic spectrum
The full range of frequencies of electromagnetic waves
Transverse wave
Travelers opposite from the distraction
Compression
Occurs when rocks are squeezed by external forces directed toward one another to put stress on the rock , acting to deacrease its volume or shorten its dimensions or pushed together
Reflection
When light strikes a surface and bounces back
Diffraction
The change direction of a Ray of light sound heat or the the light in the passing from one medium into another in which its wave velocity I’d different
Refraction
The bending of light as it passes through or around an object
