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15 terms

Physical Science 4th Quarter

To help me study for quizzes, tests, and the Extra Credit Test. (:
STUDY
PLAY
wave
a disturbance that transmits energy through matter or space
medium
a substance through which a wave travels
mechanical wave
a wave that REQUIRES A MEDIUM which to travel
electromagnetic wave
a wave that DOES NOT REQUIRE A MEDIUM through which to travel
wave length
distance between two successive identical parts of a wave
amplitude
the height of a transverse wave; proportional to the energy of the wave
transverse wave
a wave in which the medium moves perpendicular to the direction the wave travels....... all electromagnetic waves; some seismic waves; "the wave"
longitudinal
a wave in which the medium moves parallel to the direction the wave moves..... sound, some seismic waves
compression
part of a longitudinal wave where the medium is PACKED TOGETHER
rarefaction
part of a longitudinal wave where the medium is spread apart
surface wave (water wave)
causes the medium to move in a circular pattern...happens at the surface between two media
period
the amount of time for one complete wave to pass by a point
frequency
# of waves that pass by a poing in one second
reflection
the bouncing of a wave as it makes a surface between two media
refraction
the bending of a wave as it passes from one medium to another at an angle ofther 90 degrees