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Phys. Sci. - waves
vocab for waves in Physical Science
18
Science
9th Grade
02/10/2010

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Term
Reflection
Definition
when a wave strikes an object and bounces off
Term
Waves
Definition
repeating disturbances that transfer energy through matter or space
Term
Crest
Definition
highest point of a transverse wave
Term
compression
Definition
region where the medium is crowded and dense in a compressional wave
Term
transverse wave
Definition
wave that makes matter in the medium move back and forth at right angles to the direction the wave travels.
Term
interference
Definition
ability if two or more waves to combine and form a new wave
Term
trough
Definition
lowest point of a transverse wave
Term
Medium
Definition
material through which a wave transfers energy.
Term
diffraction
Definition
the bending of waves around a barrier
Term
rarefaction
Definition
less dense region of a compressional wave
Term
resonance
Definition
ability of an object to vibrate by absorbing energy at its natural frequency
Term
compressional wave
Definition
wave in which matter in the medium moves back and forth in the same direction the wave travels.
Term
wave length
Definition
distance between one point in a wave and the nearest point just like it
Term
Frequency
Definition
measure of how many wavelengths pass a fixed point each second
Term
Law of Reflections
Definition
the angle of incidence is equal to the ange of reflection
Term
amplitude
Definition

the measure of energy of a wave

 

how high the wave is

Term
Standing wave
Definition
a special type of wave pattern that forms when waves of equal wavelength and amplitude traveling in opposite directions continuously interfere with each other
Term
Rarefaction
Definition
the bending of a wave caused by a change in it's speed as it moves from one medium to another
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