Vocabulary123 Flashcards
Frequency
the number of cycles a wave completes in a period of time; the number of times something happens in a period of time
Period
The time needed for a complete cycle to pass a given point
Wavelength
the distance between one peak and the next on a wave
Crest
the highest point of a wave
Trough
the lowest point of a wave
Amplitude
height or “strength” of a wave
Longitude Wave
a wave that occurs when the particles of a medium move parallel to the direction of the wave
Electromagnetic Spectrum
the full range of frequencies of electromagnetic waves
Transverse Wave
a wave that occurs when the particles of a medium are displaced perpendicularly to the direction of the wave
Compression
occurs when rocks are squeezed by external forces directed toward one another to put stress on the rock, acting to decrease its volume or shorten its dimensions
Rare fraction
The decrease in density in a longitudinal way
Reflection
to strike a surface and bounce back in the opposite direction (related word: reflection)
Refraction
to bend light as it passes through a material (related word: refraction)
Diffraction
The bending of light as it passes through or around an object
