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Science chapter 18 waves and sound vocab

Terms

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wave
rythmic disturbances that carry energy through matter or space.
medium
a material through which a wave occurs.
transverse wave
a wave where the medium moves at right angles to the direction the wave is travelling.
lambda
the symbol for wavelength in equations
wave velocity
How fast a wave travels.
compressional wave
matter vibrates in the same direction
pitch
the highness or lowness of a sound
intensity
the amount of energy in a wave
decible
the unit for measuring intensity levels
resonance
a sound that reaches an object is at the same frequency as the natural frequency of the object, the object will begin to vibrate at this frequency
acoustics
the study of sound
amplitude
in a wave, the distance from the rest position of the medium to either the crest or trough
crest
the highest point of a wave
trough
the lowest point of wave
wavelength
the distance between identical points on two adjacent waves
frequency
the number of wave crests that pass a point during one second
expressed in hertz Htz
loudness
the human perception of sound intensity
ultrasonic technology
technology usin high-frequency sound waves for many different purposes such as medical diagnoses, sonar, and jewelry cleaning
music
sound created using specific pitches, sound quality, and regular patterns
noise
sound that has no regular pattern or definite pitch
quality
in sound the differences amond sounds of the same pitch and loudness
interference
the ability of two or more waves to combine and form a new wave
reverberation
the ecoing effect produced by multiple reflections of sound.

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