15 terms

Universe Vocabulary set 2

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waves
is a repeating disturbance movement or vibration
mechanical waves
Waves that need a medium to travel through
transverse waves
waves that move the medium at right angles to the direction in which the waves travel
compressional waves
A wave in which matter vibrates in the same direction as the energy waves traveling through it.
wavelength
the distance (measured in the direction of propagation) between two points in the same phase in consecutive cycles of a wave
frequency
the number of observations in a given statistical category
wave speed
the speed at which a wave travels
reflection
the image of something as reflected by a mirror (or other reflective material)
refraction
the change in direction of a propagating wave (light or sound) when passing from one medium to another
amplitude
the height of a wave's crest
crest
reach a high point
trough
a long narrow shallow receptacle
rarefraction
a region in a sound wave where there are fewer air particles than normal
compression
applying pressure
medium
an occupation for which you are especially well suited